diff --git a/.cspell.json b/.cspell.json
index 947c706..d0a11fc 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -8,8 +8,10 @@
   "words": [
     "cloudflare",
     "datasource",
+    "neverthrow",
     "prisma",
     "sqlite",
+    "Uncapitalize",
     "uuid"
   ]
 }
diff --git a/app/routes/test.tsx b/app/routes/test.tsx
new file mode 100644
index 0000000..366fa77
--- /dev/null
+++ b/app/routes/test.tsx
@@ -0,0 +1,32 @@
+import type { LoaderFunctionArgs } from '@remix-run/cloudflare';
+import { MemberId } from '@/utils/models/member';
+import { useLoaderData } from '@remix-run/react';
+
+export async function loader({ context }: LoaderFunctionArgs) {
+  const { db } = context;
+  const { Member } = db.models;
+  const member = (await Member.factories.from(
+    MemberId.from('0188c0f2-8e47-11ec-b909-0242ac120002')._unsafeUnwrap(),
+  ))._unsafeUnwrap();
+
+  return { member };
+}
+
+export default function Index() {
+  const { member } = useLoaderData<typeof loader>();
+
+  return (
+    <div>
+      <div>test</div>
+      <textarea
+        defaultValue={JSON.stringify(member, null, 2)}
+        style={{
+          width: '100%',
+          minHeight: '10lh',
+          // @ts-expect-error お NEW なプロパティ
+          fieldSizing: 'content',
+        }}
+      />
+    </div>
+  );
+}
diff --git a/app/services/database.server.ts b/app/services/database.server.ts
new file mode 100644
index 0000000..8b4af33
--- /dev/null
+++ b/app/services/database.server.ts
@@ -0,0 +1,69 @@
+import type { DatabaseError, PrismaClientError } from '@/types/database';
+import type { ModelMetadata } from '@/types/model';
+import { clientKnownErrorCode } from '@/types/database';
+import { getEntries } from '@/utils';
+import { __Member } from '@/utils/models/member';
+import { Prisma, type PrismaClient } from '@prisma/client';
+import { ResultAsync } from 'neverthrow';
+import { match } from 'ts-pattern';
+
+export class Database {
+  public models;
+
+  public constructor(protected client: PrismaClient) {
+    this.models = {
+      Member: __Member(client),
+    };
+  }
+
+  public static transformError(
+    metadata: ModelMetadata<any, 'CATCH_ALL'>,
+    caller: string,
+    error: unknown,
+    { message, hint }: Partial<{ message: string; hint: string }> = {},
+  ): DatabaseError {
+    const detail
+      = match(error)
+        .when(
+          (e) => e instanceof Prisma.PrismaClientKnownRequestError,
+          (e) => {
+            const type = getEntries(clientKnownErrorCode).find(([, code]) => code === e.code)?.[0] ?? 'UNKNOWN_REQUEST_ERROR' as const;
+            return { type, _raw: e };
+          },
+        )
+        .when(
+          (e) => e instanceof Prisma.PrismaClientValidationError,
+          (e) => ({ type: 'DATA_VALIDATION_FAILED' as const, _raw: e }),
+        )
+        .when(
+          (e) => e instanceof Prisma.PrismaClientKnownRequestError || e instanceof Prisma.PrismaClientUnknownRequestError,
+          (e) => ({ type: 'UNKNOWN_REQUEST_ERROR' as const, _raw: e }),
+        )
+        .when(
+          (e) => e instanceof Prisma.PrismaClientRustPanicError || e instanceof Prisma.PrismaClientInitializationError,
+          (e) => ({ type: 'UNKNOWN_ERROR' as const, _raw: e }),
+        )
+        .otherwise(
+          () => ({ type: 'UNEXPECTED_ERROR' as const, _raw: new Error('Unknown error', { cause: error }) }),
+        );
+
+    const _message
+      = match(detail.type)
+        .with('NO_ROWS_FOUND', () => `この${metadata.displayName}は見つかりませんでした`)
+        .with('ALREADY_EXISTS', () => `この${metadata.displayName}は既に存在します`)
+        .with('DATA_VALIDATION_FAILED', () => `この${metadata.displayName}のデータが不正です`)
+        .otherwise(() => `${metadata.displayName}の処理中にエラーが発生しました`);
+
+    return {
+      metadata,
+      caller,
+      message: message ?? _message,
+      hint,
+      ...detail,
+    };
+  }
+
+  public static transformResult<S>(fn: Promise<S>): ResultAsync<S, PrismaClientError> {
+    return ResultAsync.fromPromise(fn, (e) => e as PrismaClientError);
+  }
+}
diff --git a/app/types/database.ts b/app/types/database.ts
new file mode 100644
index 0000000..1a8b0a4
--- /dev/null
+++ b/app/types/database.ts
@@ -0,0 +1,48 @@
+import type { ModelMetadata } from '@/types/model';
+import type { Prisma } from '@prisma/client';
+import type { ResultAsync } from 'neverthrow';
+
+export const clientKnownErrorCode = {
+  ALREADY_EXISTS: 'P2002',
+  NO_ROWS_FOUND: 'P2025',
+} as const satisfies Record<string, string>;
+
+// ref: https://www.prisma.io/docs/orm/reference/error-reference
+export type PrismaClientError =
+  | Prisma.PrismaClientKnownRequestError
+  | Prisma.PrismaClientValidationError
+  | Prisma.PrismaClientUnknownRequestError
+  | Prisma.PrismaClientRustPanicError
+  | Prisma.PrismaClientInitializationError
+  | Error;
+
+export type DatabaseErrorDetail =
+  | {
+    type: keyof typeof clientKnownErrorCode | 'UNKNOWN_REQUEST_ERROR';
+    _raw: Prisma.PrismaClientKnownRequestError;
+  }
+  | {
+    type: 'DATA_VALIDATION_FAILED';
+    _raw: Prisma.PrismaClientValidationError;
+  }
+  | {
+    type: 'UNKNOWN_REQUEST_ERROR';
+    _raw: Prisma.PrismaClientKnownRequestError | Prisma.PrismaClientUnknownRequestError;
+  }
+  | {
+    type: 'UNKNOWN_ERROR';
+    _raw: Prisma.PrismaClientRustPanicError | Prisma.PrismaClientInitializationError;
+  }
+  | {
+    type: 'UNEXPECTED_ERROR';
+    _raw: Error;
+  };
+
+export type DatabaseError = {
+  metadata: ModelMetadata<any>;
+  caller: string;
+  message: string;
+  hint?: string;
+} & DatabaseErrorDetail;
+
+export type DatabaseResult<S> = ResultAsync<S, DatabaseError>;
diff --git a/app/types/model.ts b/app/types/model.ts
new file mode 100644
index 0000000..7891d1a
--- /dev/null
+++ b/app/types/model.ts
@@ -0,0 +1,43 @@
+import type { Model } from '@/utils/model';
+import type { Prisma, PrismaClient } from '@prisma/client';
+
+export interface ModelMetadata<
+  M extends Prisma.ModelName,
+  V extends 'CATCH_ALL' | 'DEFAULT' = 'DEFAULT',
+> {
+  modelName: M;
+  displayName: string;
+  primaryKeyName: V extends 'CATCH_ALL' ? any : keyof PrismaClient[Uncapitalize<M>]['fields'];
+}
+
+// __M = (client) => M のときの M
+export type ModelGenerator<
+  Metadata extends ModelMetadata<any, 'CATCH_ALL'>,
+  Schema extends object,
+> = (client: PrismaClient) => new (data: Schema) => Model<Metadata, Schema>;
+
+export type AnyModelGenerator = ModelGenerator<ModelMetadata<any, 'CATCH_ALL'>, any>;
+export type AnyModel = Model<any, any>;
+
+// __M = (client) => M のときの M
+// ただし, __M = (client) => M のときの M に対しても適用可能
+export type ModelEntityOf<T extends AnyModelGenerator | AnyModel>
+  = T extends AnyModelGenerator
+    ? InstanceType<ReturnType<T>>
+    : T extends AnyModel
+      ? T
+      : never;
+
+// M: Model<Metadata, Schema> のときの Metadata
+// ただし, __M = (client) => M のときの M に対しても適用可能
+export type ModelMetadataOf<T extends AnyModelGenerator | AnyModel>
+  = ModelEntityOf<T> extends Model<infer M, any>
+    ? M
+    : never;
+
+// M: Model<Metadata, Schema> のときの Metadata
+// ただし, __M = (client) => M のときの M に対しても適用可能
+export type ModelSchemaOf<T extends AnyModelGenerator | AnyModel>
+  = ModelEntityOf<T> extends Model<any, infer S>
+    ? S
+    : never;
diff --git a/app/types/utils.ts b/app/types/utils.ts
new file mode 100644
index 0000000..2286c93
--- /dev/null
+++ b/app/types/utils.ts
@@ -0,0 +1,25 @@
+export type Override<T, U extends { [Key in keyof T]?: unknown }> = Omit<
+  T,
+  keyof U
+> &
+U;
+
+export type Entries<T> = Array<
+  keyof T extends infer U ? (U extends keyof T ? [U, T[U]] : never) : never
+>;
+
+export type ArrayElem<ArrayType extends readonly unknown[]> =
+  ArrayType extends ReadonlyArray<infer ElementType> ? ElementType : never;
+
+export type OmitStrict<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
+
+export type Nullable<T> = T | null | undefined;
+
+// ref: https://zenn.dev/ourly_tech_blog/articles/branded_type_20240726#3.-branded-type%E3%81%AE%E5%AE%9F%E8%A3%85%E6%96%B9%E6%B3%95
+declare const __brand: unique symbol;
+export type Brand<K, T> = K & { [__brand]: T };
+
+// ref: https://www.totaltypescript.com/concepts/the-prettify-helper
+export type Prettify<T> = {
+  [K in keyof T]: T[K];
+} & {};
diff --git a/app/utils/index.ts b/app/utils/index.ts
index eeae82c..7d11903 100644
--- a/app/utils/index.ts
+++ b/app/utils/index.ts
@@ -1,6 +1,53 @@
+import type { Brand, Entries } from '@/types/utils';
+import type { Result } from 'neverthrow';
+import type { ZodError } from 'zod';
 import { TYPES } from '@/consts/member';
+import { err, ok } from 'neverthrow';
+import { string } from 'zod';
 
 export function toTypeName(key: string) {
   const type = TYPES.find((t) => t.key === key);
   return type?.name;
 }
+
+export function toUncapitalize<T extends string>(str: T): Uncapitalize<T> {
+  return str.charAt(0).toLowerCase() + str.slice(1) as Uncapitalize<T>;
+}
+
+export function parseUuid<K extends string>(uuid: string): Result<Brand<K, string>, ZodError<string>> {
+  const zUuid = string().uuid();
+  const { success, data, error } = zUuid.safeParse(uuid);
+
+  if (!success) {
+    return err(error);
+  }
+
+  return ok(data as Brand<K, string>);
+}
+
+export async function waitMs(ms: number): Promise<void> {
+  await new Promise((resolve) => {
+    setTimeout(resolve, ms);
+  });
+}
+
+export function getKeys<T extends Record<string, unknown>>(
+  obj: T,
+): Array<keyof T> {
+  return Object.keys(obj);
+}
+export function getValues<T extends Record<string, any>>(
+  obj: T,
+): Array<T[keyof T]> {
+  return Object.values(obj);
+}
+export function getEntries<T extends Record<string, unknown>>(
+  obj: T,
+): Entries<T> {
+  return Object.entries(obj) as Entries<T>;
+}
+export function fromEntries<T extends Record<string, unknown>>(
+  entries: Entries<T>,
+): T {
+  return Object.fromEntries(entries) as T;
+}
diff --git a/app/utils/model.ts b/app/utils/model.ts
new file mode 100644
index 0000000..7beec0d
--- /dev/null
+++ b/app/utils/model.ts
@@ -0,0 +1,63 @@
+import type { DatabaseResult } from '@/types/database';
+import type {
+  AnyModel,
+  ModelMetadata,
+  ModelMetadataOf,
+  ModelSchemaOf,
+} from '@/types/model';
+import type { Brand } from '@/types/utils';
+import type { Prisma, PrismaClient } from '@prisma/client';
+import { Database } from '@/services/database.server';
+import { toUncapitalize } from '@/utils';
+
+export abstract class Model<
+  Metadata extends ModelMetadata<any, 'CATCH_ALL'>,
+  Schema extends object,
+> {
+  public constructor(public data: Schema, protected metadata: Metadata) {}
+
+  /**
+   * {@link Database.transformError} の部分適用.
+   * `Model` を継承しているので, 最初の引数を省略できる.
+   */
+  protected transformError(caller: string) {
+    return (
+      ...rest: Parameters<typeof Database.transformError> extends [
+        any,
+        any,
+        ...infer R,
+      ]
+        ? R
+        : never
+    ) => Database.transformError(this.metadata, caller, ...rest);
+  }
+
+  protected transformResult = Database.transformResult;
+
+  protected static getFactories<
+    B extends Brand<string, unknown>,
+    M extends AnyModel,
+  >(
+    client: PrismaClient,
+  ) {
+    return (
+      Model: new (data: ModelSchemaOf<M>) => M,
+      metadata: ModelMetadataOf<M>,
+    ) => ({
+      from: (id: B): DatabaseResult<M> => {
+        const { modelName, primaryKeyName } = metadata as ModelMetadata<Prisma.ModelName, 'CATCH_ALL'>;
+        const modelNameUnCapitalize = toUncapitalize (modelName);
+
+        const result = Database.transformResult<ModelSchemaOf<M>>(
+          // @ts-expect-error: `primaryKeyName` が `any` になってしまうため, 型エラーが発生する
+          // eslint-disable-next-line ts/no-unsafe-argument
+          client[modelNameUnCapitalize].findUniqueOrThrow({ where: { [primaryKeyName]: id } }),
+        );
+
+        return result
+          .map((data) => new Model(data))
+          .mapErr((e) => Database.transformError(metadata, 'from', e));
+      },
+    });
+  }
+}
diff --git a/app/utils/models/member.ts b/app/utils/models/member.ts
new file mode 100644
index 0000000..fa73616
--- /dev/null
+++ b/app/utils/models/member.ts
@@ -0,0 +1,50 @@
+/* eslint-disable ts/no-redeclare */
+
+import type { ModelGenerator, ModelMetadata } from '@/types/model';
+import type { ArrayElem, Brand, Override } from '@/types/utils';
+import type { Member as _Member } from '@prisma/client';
+import { parseUuid } from '@/utils';
+import { Model } from '@/utils/model';
+
+/**
+ * セキュリティーロール – 上に行くほど権限が強いです.
+ */
+export const securityRoles = [
+  'DEFAULT',
+  'MEMBER',
+  'READ',
+  'PAYMENT_APPROVE',
+  'OWNER',
+] as const;
+type SecurityRole = ArrayElem<typeof securityRoles>;
+
+export type MemberId = Brand<'memberId', string>;
+export const MemberId = {
+  from: parseUuid<'memberId'>,
+};
+
+type Schema = Override<
+  _Member,
+  {
+    id: MemberId;
+    subject: Brand<'subject', string>;
+    securityRole: SecurityRole;
+  }
+>;
+
+const metadata = {
+  displayName: '部員',
+  modelName: 'Member',
+  primaryKeyName: 'id',
+} as const satisfies ModelMetadata<'Member'>;
+
+export const __Member = (
+  (client) =>
+    class Member extends Model<typeof metadata, Schema> {
+      public constructor(data: Schema) {
+        super(data, metadata);
+      }
+
+      public static factories = this.getFactories<MemberId, Member>(client)(Member, metadata);
+    }
+  ) satisfies ModelGenerator<typeof metadata, Schema>;
diff --git a/eslint.config.js b/eslint.config.js
index 60652ad..33fd0e9 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -36,6 +36,7 @@ export default antfu({
         {
           selector: 'variable',
           format: ['camelCase', 'UPPER_CASE', 'PascalCase'],
+          leadingUnderscore: 'allowSingleOrDouble',
         },
       ],
       'ts/no-floating-promises': ['error'],
diff --git a/load-context.ts b/load-context.ts
index 0b9a95a..d574748 100644
--- a/load-context.ts
+++ b/load-context.ts
@@ -1,7 +1,7 @@
 import type { AppLoadContext } from '@remix-run/cloudflare';
 import type { PlatformProxy } from 'wrangler';
-import { Database } from '@/services/db.server';
-import { injectPrismaClient } from './app/services/__prisma.server';
+import { injectPrismaClient } from '@/services/__prisma.server';
+import { Database } from '@/services/database.server';
 
 type Cloudflare = Omit<PlatformProxy<Env>, 'dispose'>;
 
diff --git a/migrations/0001_create_table.sql b/migrations/0001_create_table.sql
index e5c4052..f832577 100644
--- a/migrations/0001_create_table.sql
+++ b/migrations/0001_create_table.sql
@@ -1,9 +1,9 @@
 -- CreateTable
 CREATE TABLE "Member" (
     "id" TEXT NOT NULL PRIMARY KEY,
+    "subject" TEXT NOT NULL,
     "email" TEXT NOT NULL,
-    "username" TEXT NOT NULL,
-    "securityRole" INTEGER NOT NULL,
+    "securityRole" TEXT NOT NULL,
     "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     "updatedAt" DATETIME NOT NULL
 );
@@ -16,7 +16,6 @@ CREATE TABLE "MemberBase" (
     "lastName" TEXT NOT NULL,
     "firstNameKana" TEXT NOT NULL,
     "lastNameKana" TEXT NOT NULL,
-    "role" TEXT NOT NULL,
     "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     "updatedAt" DATETIME NOT NULL,
     CONSTRAINT "MemberBase_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
@@ -25,12 +24,14 @@ CREATE TABLE "MemberBase" (
 -- CreateTable
 CREATE TABLE "MemberStatus" (
     "memberId" TEXT NOT NULL PRIMARY KEY,
-    "status" TEXT NOT NULL,
-    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    "updatedAt" DATETIME NOT NULL,
-    "memberIdAsModifier" TEXT NOT NULL,
+    "hasDeleted" BOOLEAN NOT NULL DEFAULT false,
+    "lastRenewalDate" DATETIME NOT NULL,
+    "updatedHasDeletedAt" DATETIME NOT NULL,
+    "updatedHasDeletedById" TEXT NOT NULL,
+    "updatedLastRenewalDateById" TEXT NOT NULL,
     CONSTRAINT "MemberStatus_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE,
-    CONSTRAINT "MemberStatus_memberIdAsModifier_fkey" FOREIGN KEY ("memberIdAsModifier") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
+    CONSTRAINT "MemberStatus_updatedHasDeletedById_fkey" FOREIGN KEY ("updatedHasDeletedById") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE,
+    CONSTRAINT "MemberStatus_updatedLastRenewalDateById_fkey" FOREIGN KEY ("updatedLastRenewalDateById") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
 );
 
 -- CreateTable
@@ -51,31 +52,31 @@ CREATE TABLE "MemberSensitive" (
 -- CreateTable
 CREATE TABLE "MemberActive" (
     "memberId" TEXT NOT NULL PRIMARY KEY,
-    "retentionBias" INTEGER NOT NULL DEFAULT 0,
+    "grade" TEXT NOT NULL,
     "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     "updatedAt" DATETIME NOT NULL,
     CONSTRAINT "MemberActive_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
 );
 
 -- CreateTable
-CREATE TABLE "MemberInternal" (
+CREATE TABLE "MemberActiveInternal" (
     "memberId" TEXT NOT NULL PRIMARY KEY,
     "studentId" TEXT NOT NULL,
+    "role" TEXT NOT NULL,
     "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     "updatedAt" DATETIME NOT NULL,
-    CONSTRAINT "MemberInternal_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
+    CONSTRAINT "MemberActiveInternal_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
 );
 
 -- CreateTable
-CREATE TABLE "MemberExternal" (
+CREATE TABLE "MemberActiveExternal" (
     "memberId" TEXT NOT NULL PRIMARY KEY,
     "schoolName" TEXT NOT NULL,
     "schoolMajor" TEXT NOT NULL,
-    "enrollYear" INTEGER NOT NULL,
     "organization" TEXT NOT NULL,
     "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     "updatedAt" DATETIME NOT NULL,
-    CONSTRAINT "MemberExternal_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
+    CONSTRAINT "MemberActiveExternal_memberId_fkey" FOREIGN KEY ("memberId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
 );
 
 -- CreateTable
@@ -92,18 +93,26 @@ CREATE TABLE "MemberAlumni" (
 CREATE TABLE "Payment" (
     "id" TEXT NOT NULL PRIMARY KEY,
     "payerId" TEXT NOT NULL,
-    "payeeId" TEXT NOT NULL,
+    "receiverId" TEXT NOT NULL,
+    "hasApproved" BOOLEAN NOT NULL DEFAULT false,
+    "approverId" TEXT,
     "receivedAt" DATETIME NOT NULL,
-    "hasAccountantApproved" BOOLEAN NOT NULL,
+    "approvedAt" DATETIME,
     "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    "updatedAt" DATETIME NOT NULL,
     CONSTRAINT "Payment_payerId_fkey" FOREIGN KEY ("payerId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE,
-    CONSTRAINT "Payment_payeeId_fkey" FOREIGN KEY ("payeeId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
+    CONSTRAINT "Payment_receiverId_fkey" FOREIGN KEY ("receiverId") REFERENCES "Member" ("id") ON DELETE RESTRICT ON UPDATE CASCADE,
+    CONSTRAINT "Payment_approverId_fkey" FOREIGN KEY ("approverId") REFERENCES "Member" ("id") ON DELETE SET NULL ON UPDATE CASCADE
 );
 
 -- CreateIndex
 CREATE UNIQUE INDEX "Member_id_key" ON "Member"("id");
 
+-- CreateIndex
+CREATE UNIQUE INDEX "Member_subject_key" ON "Member"("subject");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Member_email_key" ON "Member"("email");
+
 -- CreateIndex
 CREATE UNIQUE INDEX "MemberBase_memberId_key" ON "MemberBase"("memberId");
 
@@ -117,13 +126,28 @@ CREATE UNIQUE INDEX "MemberSensitive_memberId_key" ON "MemberSensitive"("memberI
 CREATE UNIQUE INDEX "MemberActive_memberId_key" ON "MemberActive"("memberId");
 
 -- CreateIndex
-CREATE UNIQUE INDEX "MemberInternal_memberId_key" ON "MemberInternal"("memberId");
+CREATE UNIQUE INDEX "MemberActiveInternal_memberId_key" ON "MemberActiveInternal"("memberId");
 
 -- CreateIndex
-CREATE UNIQUE INDEX "MemberExternal_memberId_key" ON "MemberExternal"("memberId");
+CREATE UNIQUE INDEX "MemberActiveInternal_studentId_key" ON "MemberActiveInternal"("studentId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "MemberActiveExternal_memberId_key" ON "MemberActiveExternal"("memberId");
 
 -- CreateIndex
 CREATE UNIQUE INDEX "MemberAlumni_memberId_key" ON "MemberAlumni"("memberId");
 
 -- CreateIndex
 CREATE UNIQUE INDEX "Payment_id_key" ON "Payment"("id");
+
+-- Seed
+INSERT INTO "Member" ("id", "subject", "email", "securityRole") VALUES
+('0188c0f2-8e47-11ec-b909-0242ac120002', 'Mathematics', 'math@example.com', 'admin'),
+('0188c0f2-8e47-11ec-b909-0242ac120003', 'Science', 'science@example.com', 'user'),
+('0188c0f2-8e47-11ec-b909-0242ac120004', 'History', 'history@example.com', 'user');
+
+-- Seed Data for MemberBase
+INSERT INTO "MemberBase" ("memberId", "iconUrl", "firstName", "lastName", "firstNameKana", "lastNameKana") VALUES
+('0188c0f2-8e47-11ec-b909-0242ac120002', 'http://example.com/icon1.png', 'Taro', 'Yamada', 'タロウ', 'ヤマダ'),
+('0188c0f2-8e47-11ec-b909-0242ac120003', 'http://example.com/icon2.png', 'Hanako', 'Tanaka', 'ハナコ', 'タナカ'),
+('0188c0f2-8e47-11ec-b909-0242ac120004', 'http://example.com/icon3.png', 'Kenji', 'Suzuki', 'ケンジ', 'スズキ');
diff --git a/package.json b/package.json
index 3a2c379..4786d02 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "build": "remix vite:build",
-    "dev": "remix vite:dev",
+    "dev": "NODE_OPTIONS=\"--import tsx/esm\" remix vite:dev",
     "lint": "eslint . --fix",
     "lint:check": "eslint .",
     "preview": "pnpm run build && wrangler pages dev",
@@ -29,12 +29,14 @@
     "dayjs": "^1.11.13",
     "destr": "^2.0.3",
     "isbot": "^4.1.0",
+    "neverthrow": "^8.1.1",
     "prisma": "^6.1.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "remix-auth": "^3.7.0",
     "remix-auth-auth0": "^1.10.0",
     "restyle": "^3.0.0",
+    "ts-pattern": "^5.6.0",
     "zod": "^3.24.1"
   },
   "devDependencies": {
@@ -49,6 +51,7 @@
     "eslint-plugin-react-refresh": "^0.4.16",
     "rollup-plugin-typescript2": "^0.36.0",
     "ts-patch": "^3.3.0",
+    "tsx": "^4.19.2",
     "typescript": "^5.7.2",
     "vite": "^5.1.0",
     "vite-tsconfig-paths": "^4.2.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index cda18b1..af96734 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -41,6 +41,9 @@ importers:
       isbot:
         specifier: ^4.1.0
         version: 4.4.0
+      neverthrow:
+        specifier: ^8.1.1
+        version: 8.1.1
       prisma:
         specifier: ^6.1.0
         version: 6.1.0
@@ -59,6 +62,9 @@ importers:
       restyle:
         specifier: ^3.0.0
         version: 3.0.0(react@19.0.0)
+      ts-pattern:
+        specifier: ^5.6.0
+        version: 5.6.0
       zod:
         specifier: ^3.24.1
         version: 3.24.1
@@ -96,6 +102,9 @@ importers:
       ts-patch:
         specifier: ^3.3.0
         version: 3.3.0
+      tsx:
+        specifier: ^4.19.2
+        version: 4.19.2
       typescript:
         specifier: ^5.7.2
         version: 5.7.2
@@ -387,6 +396,12 @@ packages:
     cpu: [ppc64]
     os: [aix]
 
+  '@esbuild/aix-ppc64@0.23.1':
+    resolution: {integrity: sha512-6VhYk1diRqrhBAqpJEdjASR/+WVRtfjpqKuNw11cLiaWpAT/Uu+nokB+UJnevzy/P9C/ty6AOe0dwueMrGh/iQ==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [aix]
+
   '@esbuild/android-arm64@0.17.19':
     resolution: {integrity: sha512-KBMWvEZooR7+kzY0BtbTQn0OAYY7CsiydT63pVEaPtVYF0hXbUaOyZog37DKxK7NF3XacBJOpYT4adIJh+avxA==}
     engines: {node: '>=12'}
@@ -405,6 +420,12 @@ packages:
     cpu: [arm64]
     os: [android]
 
+  '@esbuild/android-arm64@0.23.1':
+    resolution: {integrity: sha512-xw50ipykXcLstLeWH7WRdQuysJqejuAGPd30vd1i5zSyKK3WE+ijzHmLKxdiCMtH1pHz78rOg0BKSYOSB/2Khw==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [android]
+
   '@esbuild/android-arm@0.17.19':
     resolution: {integrity: sha512-rIKddzqhmav7MSmoFCmDIb6e2W57geRsM94gV2l38fzhXMwq7hZoClug9USI2pFRGL06f4IOPHHpFNOkWieR8A==}
     engines: {node: '>=12'}
@@ -423,6 +444,12 @@ packages:
     cpu: [arm]
     os: [android]
 
+  '@esbuild/android-arm@0.23.1':
+    resolution: {integrity: sha512-uz6/tEy2IFm9RYOyvKl88zdzZfwEfKZmnX9Cj1BHjeSGNuGLuMD1kR8y5bteYmwqKm1tj8m4cb/aKEorr6fHWQ==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [android]
+
   '@esbuild/android-x64@0.17.19':
     resolution: {integrity: sha512-uUTTc4xGNDT7YSArp/zbtmbhO0uEEK9/ETW29Wk1thYUJBz3IVnvgEiEwEa9IeLyvnpKrWK64Utw2bgUmDveww==}
     engines: {node: '>=12'}
@@ -441,6 +468,12 @@ packages:
     cpu: [x64]
     os: [android]
 
+  '@esbuild/android-x64@0.23.1':
+    resolution: {integrity: sha512-nlN9B69St9BwUoB+jkyU090bru8L0NA3yFvAd7k8dNsVH8bi9a8cUAUSEcEEgTp2z3dbEDGJGfP6VUnkQnlReg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [android]
+
   '@esbuild/darwin-arm64@0.17.19':
     resolution: {integrity: sha512-80wEoCfF/hFKM6WE1FyBHc9SfUblloAWx6FJkFWTWiCoht9Mc0ARGEM47e67W9rI09YoUxJL68WHfDRYEAvOhg==}
     engines: {node: '>=12'}
@@ -459,6 +492,12 @@ packages:
     cpu: [arm64]
     os: [darwin]
 
+  '@esbuild/darwin-arm64@0.23.1':
+    resolution: {integrity: sha512-YsS2e3Wtgnw7Wq53XXBLcV6JhRsEq8hkfg91ESVadIrzr9wO6jJDMZnCQbHm1Guc5t/CdDiFSSfWP58FNuvT3Q==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [darwin]
+
   '@esbuild/darwin-x64@0.17.19':
     resolution: {integrity: sha512-IJM4JJsLhRYr9xdtLytPLSH9k/oxR3boaUIYiHkAawtwNOXKE8KoU8tMvryogdcT8AU+Bflmh81Xn6Q0vTZbQw==}
     engines: {node: '>=12'}
@@ -477,6 +516,12 @@ packages:
     cpu: [x64]
     os: [darwin]
 
+  '@esbuild/darwin-x64@0.23.1':
+    resolution: {integrity: sha512-aClqdgTDVPSEGgoCS8QDG37Gu8yc9lTHNAQlsztQ6ENetKEO//b8y31MMu2ZaPbn4kVsIABzVLXYLhCGekGDqw==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [darwin]
+
   '@esbuild/freebsd-arm64@0.17.19':
     resolution: {integrity: sha512-pBwbc7DufluUeGdjSU5Si+P3SoMF5DQ/F/UmTSb8HXO80ZEAJmrykPyzo1IfNbAoaqw48YRpv8shwd1NoI0jcQ==}
     engines: {node: '>=12'}
@@ -495,6 +540,12 @@ packages:
     cpu: [arm64]
     os: [freebsd]
 
+  '@esbuild/freebsd-arm64@0.23.1':
+    resolution: {integrity: sha512-h1k6yS8/pN/NHlMl5+v4XPfikhJulk4G+tKGFIOwURBSFzE8bixw1ebjluLOjfwtLqY0kewfjLSrO6tN2MgIhA==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [freebsd]
+
   '@esbuild/freebsd-x64@0.17.19':
     resolution: {integrity: sha512-4lu+n8Wk0XlajEhbEffdy2xy53dpR06SlzvhGByyg36qJw6Kpfk7cp45DR/62aPH9mtJRmIyrXAS5UWBrJT6TQ==}
     engines: {node: '>=12'}
@@ -513,6 +564,12 @@ packages:
     cpu: [x64]
     os: [freebsd]
 
+  '@esbuild/freebsd-x64@0.23.1':
+    resolution: {integrity: sha512-lK1eJeyk1ZX8UklqFd/3A60UuZ/6UVfGT2LuGo3Wp4/z7eRTRYY+0xOu2kpClP+vMTi9wKOfXi2vjUpO1Ro76g==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [freebsd]
+
   '@esbuild/linux-arm64@0.17.19':
     resolution: {integrity: sha512-ct1Tg3WGwd3P+oZYqic+YZF4snNl2bsnMKRkb3ozHmnM0dGWuxcPTTntAF6bOP0Sp4x0PjSF+4uHQ1xvxfRKqg==}
     engines: {node: '>=12'}
@@ -531,6 +588,12 @@ packages:
     cpu: [arm64]
     os: [linux]
 
+  '@esbuild/linux-arm64@0.23.1':
+    resolution: {integrity: sha512-/93bf2yxencYDnItMYV/v116zff6UyTjo4EtEQjUBeGiVpMmffDNUyD9UN2zV+V3LRV3/on4xdZ26NKzn6754g==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [linux]
+
   '@esbuild/linux-arm@0.17.19':
     resolution: {integrity: sha512-cdmT3KxjlOQ/gZ2cjfrQOtmhG4HJs6hhvm3mWSRDPtZ/lP5oe8FWceS10JaSJC13GBd4eH/haHnqf7hhGNLerA==}
     engines: {node: '>=12'}
@@ -549,6 +612,12 @@ packages:
     cpu: [arm]
     os: [linux]
 
+  '@esbuild/linux-arm@0.23.1':
+    resolution: {integrity: sha512-CXXkzgn+dXAPs3WBwE+Kvnrf4WECwBdfjfeYHpMeVxWE0EceB6vhWGShs6wi0IYEqMSIzdOF1XjQ/Mkm5d7ZdQ==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [linux]
+
   '@esbuild/linux-ia32@0.17.19':
     resolution: {integrity: sha512-w4IRhSy1VbsNxHRQpeGCHEmibqdTUx61Vc38APcsRbuVgK0OPEnQ0YD39Brymn96mOx48Y2laBQGqgZ0j9w6SQ==}
     engines: {node: '>=12'}
@@ -567,6 +636,12 @@ packages:
     cpu: [ia32]
     os: [linux]
 
+  '@esbuild/linux-ia32@0.23.1':
+    resolution: {integrity: sha512-VTN4EuOHwXEkXzX5nTvVY4s7E/Krz7COC8xkftbbKRYAl96vPiUssGkeMELQMOnLOJ8k3BY1+ZY52tttZnHcXQ==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [linux]
+
   '@esbuild/linux-loong64@0.17.19':
     resolution: {integrity: sha512-2iAngUbBPMq439a+z//gE+9WBldoMp1s5GWsUSgqHLzLJ9WoZLZhpwWuym0u0u/4XmZ3gpHmzV84PonE+9IIdQ==}
     engines: {node: '>=12'}
@@ -585,6 +660,12 @@ packages:
     cpu: [loong64]
     os: [linux]
 
+  '@esbuild/linux-loong64@0.23.1':
+    resolution: {integrity: sha512-Vx09LzEoBa5zDnieH8LSMRToj7ir/Jeq0Gu6qJ/1GcBq9GkfoEAoXvLiW1U9J1qE/Y/Oyaq33w5p2ZWrNNHNEw==}
+    engines: {node: '>=18'}
+    cpu: [loong64]
+    os: [linux]
+
   '@esbuild/linux-mips64el@0.17.19':
     resolution: {integrity: sha512-LKJltc4LVdMKHsrFe4MGNPp0hqDFA1Wpt3jE1gEyM3nKUvOiO//9PheZZHfYRfYl6AwdTH4aTcXSqBerX0ml4A==}
     engines: {node: '>=12'}
@@ -603,6 +684,12 @@ packages:
     cpu: [mips64el]
     os: [linux]
 
+  '@esbuild/linux-mips64el@0.23.1':
+    resolution: {integrity: sha512-nrFzzMQ7W4WRLNUOU5dlWAqa6yVeI0P78WKGUo7lg2HShq/yx+UYkeNSE0SSfSure0SqgnsxPvmAUu/vu0E+3Q==}
+    engines: {node: '>=18'}
+    cpu: [mips64el]
+    os: [linux]
+
   '@esbuild/linux-ppc64@0.17.19':
     resolution: {integrity: sha512-/c/DGybs95WXNS8y3Ti/ytqETiW7EU44MEKuCAcpPto3YjQbyK3IQVKfF6nbghD7EcLUGl0NbiL5Rt5DMhn5tg==}
     engines: {node: '>=12'}
@@ -621,6 +708,12 @@ packages:
     cpu: [ppc64]
     os: [linux]
 
+  '@esbuild/linux-ppc64@0.23.1':
+    resolution: {integrity: sha512-dKN8fgVqd0vUIjxuJI6P/9SSSe/mB9rvA98CSH2sJnlZ/OCZWO1DJvxj8jvKTfYUdGfcq2dDxoKaC6bHuTlgcw==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [linux]
+
   '@esbuild/linux-riscv64@0.17.19':
     resolution: {integrity: sha512-FC3nUAWhvFoutlhAkgHf8f5HwFWUL6bYdvLc/TTuxKlvLi3+pPzdZiFKSWz/PF30TB1K19SuCxDTI5KcqASJqA==}
     engines: {node: '>=12'}
@@ -639,6 +732,12 @@ packages:
     cpu: [riscv64]
     os: [linux]
 
+  '@esbuild/linux-riscv64@0.23.1':
+    resolution: {integrity: sha512-5AV4Pzp80fhHL83JM6LoA6pTQVWgB1HovMBsLQ9OZWLDqVY8MVobBXNSmAJi//Csh6tcY7e7Lny2Hg1tElMjIA==}
+    engines: {node: '>=18'}
+    cpu: [riscv64]
+    os: [linux]
+
   '@esbuild/linux-s390x@0.17.19':
     resolution: {integrity: sha512-IbFsFbxMWLuKEbH+7sTkKzL6NJmG2vRyy6K7JJo55w+8xDk7RElYn6xvXtDW8HCfoKBFK69f3pgBJSUSQPr+4Q==}
     engines: {node: '>=12'}
@@ -657,6 +756,12 @@ packages:
     cpu: [s390x]
     os: [linux]
 
+  '@esbuild/linux-s390x@0.23.1':
+    resolution: {integrity: sha512-9ygs73tuFCe6f6m/Tb+9LtYxWR4c9yg7zjt2cYkjDbDpV/xVn+68cQxMXCjUpYwEkze2RcU/rMnfIXNRFmSoDw==}
+    engines: {node: '>=18'}
+    cpu: [s390x]
+    os: [linux]
+
   '@esbuild/linux-x64@0.17.19':
     resolution: {integrity: sha512-68ngA9lg2H6zkZcyp22tsVt38mlhWde8l3eJLWkyLrp4HwMUr3c1s/M2t7+kHIhvMjglIBrFpncX1SzMckomGw==}
     engines: {node: '>=12'}
@@ -675,6 +780,12 @@ packages:
     cpu: [x64]
     os: [linux]
 
+  '@esbuild/linux-x64@0.23.1':
+    resolution: {integrity: sha512-EV6+ovTsEXCPAp58g2dD68LxoP/wK5pRvgy0J/HxPGB009omFPv3Yet0HiaqvrIrgPTBuC6wCH1LTOY91EO5hQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [linux]
+
   '@esbuild/netbsd-x64@0.17.19':
     resolution: {integrity: sha512-CwFq42rXCR8TYIjIfpXCbRX0rp1jo6cPIUPSaWwzbVI4aOfX96OXY8M6KNmtPcg7QjYeDmN+DD0Wp3LaBOLf4Q==}
     engines: {node: '>=12'}
@@ -693,6 +804,18 @@ packages:
     cpu: [x64]
     os: [netbsd]
 
+  '@esbuild/netbsd-x64@0.23.1':
+    resolution: {integrity: sha512-aevEkCNu7KlPRpYLjwmdcuNz6bDFiE7Z8XC4CPqExjTvrHugh28QzUXVOZtiYghciKUacNktqxdpymplil1beA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [netbsd]
+
+  '@esbuild/openbsd-arm64@0.23.1':
+    resolution: {integrity: sha512-3x37szhLexNA4bXhLrCC/LImN/YtWis6WXr1VESlfVtVeoFJBRINPJ3f0a/6LV8zpikqoUg4hyXw0sFBt5Cr+Q==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openbsd]
+
   '@esbuild/openbsd-x64@0.17.19':
     resolution: {integrity: sha512-cnq5brJYrSZ2CF6c35eCmviIN3k3RczmHz8eYaVlNasVqsNY+JKohZU5MKmaOI+KkllCdzOKKdPs762VCPC20g==}
     engines: {node: '>=12'}
@@ -711,6 +834,12 @@ packages:
     cpu: [x64]
     os: [openbsd]
 
+  '@esbuild/openbsd-x64@0.23.1':
+    resolution: {integrity: sha512-aY2gMmKmPhxfU+0EdnN+XNtGbjfQgwZj43k8G3fyrDM/UdZww6xrWxmDkuz2eCZchqVeABjV5BpildOrUbBTqA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [openbsd]
+
   '@esbuild/sunos-x64@0.17.19':
     resolution: {integrity: sha512-vCRT7yP3zX+bKWFeP/zdS6SqdWB8OIpaRq/mbXQxTGHnIxspRtigpkUcDMlSCOejlHowLqII7K2JKevwyRP2rg==}
     engines: {node: '>=12'}
@@ -729,6 +858,12 @@ packages:
     cpu: [x64]
     os: [sunos]
 
+  '@esbuild/sunos-x64@0.23.1':
+    resolution: {integrity: sha512-RBRT2gqEl0IKQABT4XTj78tpk9v7ehp+mazn2HbUeZl1YMdaGAQqhapjGTCe7uw7y0frDi4gS0uHzhvpFuI1sA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [sunos]
+
   '@esbuild/win32-arm64@0.17.19':
     resolution: {integrity: sha512-yYx+8jwowUstVdorcMdNlzklLYhPxjniHWFKgRqH7IFlUEa0Umu3KuYplf1HUZZ422e3NU9F4LGb+4O0Kdcaag==}
     engines: {node: '>=12'}
@@ -747,6 +882,12 @@ packages:
     cpu: [arm64]
     os: [win32]
 
+  '@esbuild/win32-arm64@0.23.1':
+    resolution: {integrity: sha512-4O+gPR5rEBe2FpKOVyiJ7wNDPA8nGzDuJ6gN4okSA1gEOYZ67N8JPk58tkWtdtPeLz7lBnY6I5L3jdsr3S+A6A==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [win32]
+
   '@esbuild/win32-ia32@0.17.19':
     resolution: {integrity: sha512-eggDKanJszUtCdlVs0RB+h35wNlb5v4TWEkq4vZcmVt5u/HiDZrTXe2bWFQUez3RgNHwx/x4sk5++4NSSicKkw==}
     engines: {node: '>=12'}
@@ -765,6 +906,12 @@ packages:
     cpu: [ia32]
     os: [win32]
 
+  '@esbuild/win32-ia32@0.23.1':
+    resolution: {integrity: sha512-BcaL0Vn6QwCwre3Y717nVHZbAa4UBEigzFm6VdsVdT/MbZ38xoj1X9HPkZhbmaBGUD1W8vxAfffbDe8bA6AKnQ==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [win32]
+
   '@esbuild/win32-x64@0.17.19':
     resolution: {integrity: sha512-lAhycmKnVOuRYNtRtatQR1LPQf2oYCkRGkSFnseDAKPl8lu5SOsK/e1sXe5a0Pc5kHIHe6P2I/ilntNv2xf3cA==}
     engines: {node: '>=12'}
@@ -783,6 +930,12 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@esbuild/win32-x64@0.23.1':
+    resolution: {integrity: sha512-BHpFFeslkWrXWyUPnbKm+xYYVYruCinGcftSBaa8zoF9hZO4BcSCFUvHVTtzpIY6YzUnYtuEhZ+C9iEXjxnasg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [win32]
+
   '@eslint-community/eslint-plugin-eslint-comments@4.4.1':
     resolution: {integrity: sha512-lb/Z/MzbTf7CaVYM9WCFNQZ4L1yi3ev2fsFPF99h31ljhSEyUoyEsKsNWiU+qD1glbYTDJdqgyaLKtyTkkqtuQ==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
@@ -2100,6 +2253,11 @@ packages:
     engines: {node: '>=12'}
     hasBin: true
 
+  esbuild@0.23.1:
+    resolution: {integrity: sha512-VVNz/9Sa0bs5SELtn3f7qhJCDPCF5oMEl5cO9/SSinpE9hbPVvxbd572HH5AKiP7WD8INO53GgfDDhRjkylHEg==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   escalade@3.2.0:
     resolution: {integrity: sha512-WUj2qlxaQtO4g6Pq5c29GTcWGDyd8itL8zTlipgECz3JesAiiOKotd8JU6otB3PACgG6xkJUyVhboMS+bje/jA==}
     engines: {node: '>=6'}
@@ -3374,6 +3532,10 @@ packages:
     resolution: {integrity: sha512-myRT3DiWPHqho5PrJaIRyaMv2kgYf0mUVgBNOYMuCH5Ki1yEiQaf/ZJuQ62nvpc44wL5WDbTX7yGJi1Neevw8w==}
     engines: {node: '>= 0.6'}
 
+  neverthrow@8.1.1:
+    resolution: {integrity: sha512-DpbZ/UDI0B+TxJB1JysXSfi1++3YK2xLBqQLTlRN0b4zxlZ2MoiB+dKKV8dMRzt1fAFjRKDknXOVJgpl+a4Amw==}
+    engines: {node: '>=18'}
+
   node-forge@1.3.1:
     resolution: {integrity: sha512-dPEtOeMvF9VMcYV/1Wb8CPoVAXtp6MKMlcbAt4ddqmGqUJ6fQZFXkNZNkNlfevtNkGtaSoXf/vNNNSvgrdXwtA==}
     engines: {node: '>= 6.13.0'}
@@ -4215,6 +4377,11 @@ packages:
   tslib@2.8.1:
     resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
 
+  tsx@4.19.2:
+    resolution: {integrity: sha512-pOUl6Vo2LUq/bSa8S5q7b91cgNSjctn9ugq/+Mvow99qW6x/UZYwzxy/3NmqoT66eHYfCVvFvACC58UBPFf28g==}
+    engines: {node: '>=18.0.0'}
+    hasBin: true
+
   turbo-stream@2.4.0:
     resolution: {integrity: sha512-FHncC10WpBd2eOmGwpmQsWLDoK4cqsA/UT/GqNoaKOQnT8uzhtCbg3EoUDMvqpOSAI0S26mr0rkjzbOO6S3v1g==}
 
@@ -4899,6 +5066,9 @@ snapshots:
   '@esbuild/aix-ppc64@0.21.5':
     optional: true
 
+  '@esbuild/aix-ppc64@0.23.1':
+    optional: true
+
   '@esbuild/android-arm64@0.17.19':
     optional: true
 
@@ -4908,6 +5078,9 @@ snapshots:
   '@esbuild/android-arm64@0.21.5':
     optional: true
 
+  '@esbuild/android-arm64@0.23.1':
+    optional: true
+
   '@esbuild/android-arm@0.17.19':
     optional: true
 
@@ -4917,6 +5090,9 @@ snapshots:
   '@esbuild/android-arm@0.21.5':
     optional: true
 
+  '@esbuild/android-arm@0.23.1':
+    optional: true
+
   '@esbuild/android-x64@0.17.19':
     optional: true
 
@@ -4926,6 +5102,9 @@ snapshots:
   '@esbuild/android-x64@0.21.5':
     optional: true
 
+  '@esbuild/android-x64@0.23.1':
+    optional: true
+
   '@esbuild/darwin-arm64@0.17.19':
     optional: true
 
@@ -4935,6 +5114,9 @@ snapshots:
   '@esbuild/darwin-arm64@0.21.5':
     optional: true
 
+  '@esbuild/darwin-arm64@0.23.1':
+    optional: true
+
   '@esbuild/darwin-x64@0.17.19':
     optional: true
 
@@ -4944,6 +5126,9 @@ snapshots:
   '@esbuild/darwin-x64@0.21.5':
     optional: true
 
+  '@esbuild/darwin-x64@0.23.1':
+    optional: true
+
   '@esbuild/freebsd-arm64@0.17.19':
     optional: true
 
@@ -4953,6 +5138,9 @@ snapshots:
   '@esbuild/freebsd-arm64@0.21.5':
     optional: true
 
+  '@esbuild/freebsd-arm64@0.23.1':
+    optional: true
+
   '@esbuild/freebsd-x64@0.17.19':
     optional: true
 
@@ -4962,6 +5150,9 @@ snapshots:
   '@esbuild/freebsd-x64@0.21.5':
     optional: true
 
+  '@esbuild/freebsd-x64@0.23.1':
+    optional: true
+
   '@esbuild/linux-arm64@0.17.19':
     optional: true
 
@@ -4971,6 +5162,9 @@ snapshots:
   '@esbuild/linux-arm64@0.21.5':
     optional: true
 
+  '@esbuild/linux-arm64@0.23.1':
+    optional: true
+
   '@esbuild/linux-arm@0.17.19':
     optional: true
 
@@ -4980,6 +5174,9 @@ snapshots:
   '@esbuild/linux-arm@0.21.5':
     optional: true
 
+  '@esbuild/linux-arm@0.23.1':
+    optional: true
+
   '@esbuild/linux-ia32@0.17.19':
     optional: true
 
@@ -4989,6 +5186,9 @@ snapshots:
   '@esbuild/linux-ia32@0.21.5':
     optional: true
 
+  '@esbuild/linux-ia32@0.23.1':
+    optional: true
+
   '@esbuild/linux-loong64@0.17.19':
     optional: true
 
@@ -4998,6 +5198,9 @@ snapshots:
   '@esbuild/linux-loong64@0.21.5':
     optional: true
 
+  '@esbuild/linux-loong64@0.23.1':
+    optional: true
+
   '@esbuild/linux-mips64el@0.17.19':
     optional: true
 
@@ -5007,6 +5210,9 @@ snapshots:
   '@esbuild/linux-mips64el@0.21.5':
     optional: true
 
+  '@esbuild/linux-mips64el@0.23.1':
+    optional: true
+
   '@esbuild/linux-ppc64@0.17.19':
     optional: true
 
@@ -5016,6 +5222,9 @@ snapshots:
   '@esbuild/linux-ppc64@0.21.5':
     optional: true
 
+  '@esbuild/linux-ppc64@0.23.1':
+    optional: true
+
   '@esbuild/linux-riscv64@0.17.19':
     optional: true
 
@@ -5025,6 +5234,9 @@ snapshots:
   '@esbuild/linux-riscv64@0.21.5':
     optional: true
 
+  '@esbuild/linux-riscv64@0.23.1':
+    optional: true
+
   '@esbuild/linux-s390x@0.17.19':
     optional: true
 
@@ -5034,6 +5246,9 @@ snapshots:
   '@esbuild/linux-s390x@0.21.5':
     optional: true
 
+  '@esbuild/linux-s390x@0.23.1':
+    optional: true
+
   '@esbuild/linux-x64@0.17.19':
     optional: true
 
@@ -5043,6 +5258,9 @@ snapshots:
   '@esbuild/linux-x64@0.21.5':
     optional: true
 
+  '@esbuild/linux-x64@0.23.1':
+    optional: true
+
   '@esbuild/netbsd-x64@0.17.19':
     optional: true
 
@@ -5052,6 +5270,12 @@ snapshots:
   '@esbuild/netbsd-x64@0.21.5':
     optional: true
 
+  '@esbuild/netbsd-x64@0.23.1':
+    optional: true
+
+  '@esbuild/openbsd-arm64@0.23.1':
+    optional: true
+
   '@esbuild/openbsd-x64@0.17.19':
     optional: true
 
@@ -5061,6 +5285,9 @@ snapshots:
   '@esbuild/openbsd-x64@0.21.5':
     optional: true
 
+  '@esbuild/openbsd-x64@0.23.1':
+    optional: true
+
   '@esbuild/sunos-x64@0.17.19':
     optional: true
 
@@ -5070,6 +5297,9 @@ snapshots:
   '@esbuild/sunos-x64@0.21.5':
     optional: true
 
+  '@esbuild/sunos-x64@0.23.1':
+    optional: true
+
   '@esbuild/win32-arm64@0.17.19':
     optional: true
 
@@ -5079,6 +5309,9 @@ snapshots:
   '@esbuild/win32-arm64@0.21.5':
     optional: true
 
+  '@esbuild/win32-arm64@0.23.1':
+    optional: true
+
   '@esbuild/win32-ia32@0.17.19':
     optional: true
 
@@ -5088,6 +5321,9 @@ snapshots:
   '@esbuild/win32-ia32@0.21.5':
     optional: true
 
+  '@esbuild/win32-ia32@0.23.1':
+    optional: true
+
   '@esbuild/win32-x64@0.17.19':
     optional: true
 
@@ -5097,6 +5333,9 @@ snapshots:
   '@esbuild/win32-x64@0.21.5':
     optional: true
 
+  '@esbuild/win32-x64@0.23.1':
+    optional: true
+
   '@eslint-community/eslint-plugin-eslint-comments@4.4.1(eslint@9.17.0(jiti@1.21.7))':
     dependencies:
       escape-string-regexp: 4.0.0
@@ -6658,6 +6897,33 @@ snapshots:
       '@esbuild/win32-ia32': 0.21.5
       '@esbuild/win32-x64': 0.21.5
 
+  esbuild@0.23.1:
+    optionalDependencies:
+      '@esbuild/aix-ppc64': 0.23.1
+      '@esbuild/android-arm': 0.23.1
+      '@esbuild/android-arm64': 0.23.1
+      '@esbuild/android-x64': 0.23.1
+      '@esbuild/darwin-arm64': 0.23.1
+      '@esbuild/darwin-x64': 0.23.1
+      '@esbuild/freebsd-arm64': 0.23.1
+      '@esbuild/freebsd-x64': 0.23.1
+      '@esbuild/linux-arm': 0.23.1
+      '@esbuild/linux-arm64': 0.23.1
+      '@esbuild/linux-ia32': 0.23.1
+      '@esbuild/linux-loong64': 0.23.1
+      '@esbuild/linux-mips64el': 0.23.1
+      '@esbuild/linux-ppc64': 0.23.1
+      '@esbuild/linux-riscv64': 0.23.1
+      '@esbuild/linux-s390x': 0.23.1
+      '@esbuild/linux-x64': 0.23.1
+      '@esbuild/netbsd-x64': 0.23.1
+      '@esbuild/openbsd-arm64': 0.23.1
+      '@esbuild/openbsd-x64': 0.23.1
+      '@esbuild/sunos-x64': 0.23.1
+      '@esbuild/win32-arm64': 0.23.1
+      '@esbuild/win32-ia32': 0.23.1
+      '@esbuild/win32-x64': 0.23.1
+
   escalade@3.2.0: {}
 
   escape-html@1.0.3: {}
@@ -8441,6 +8707,10 @@ snapshots:
   negotiator@0.6.4:
     optional: true
 
+  neverthrow@8.1.1:
+    optionalDependencies:
+      '@rollup/rollup-linux-x64-gnu': 4.28.1
+
   node-forge@1.3.1: {}
 
   node-releases@2.0.19: {}
@@ -9335,6 +9605,13 @@ snapshots:
 
   tslib@2.8.1: {}
 
+  tsx@4.19.2:
+    dependencies:
+      esbuild: 0.23.1
+      get-tsconfig: 4.8.1
+    optionalDependencies:
+      fsevents: 2.3.3
+
   turbo-stream@2.4.0: {}
 
   type-check@0.4.0:
diff --git a/vite.config.ts b/vite.config.ts
index de11939..38a6eeb 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -5,6 +5,14 @@ import { getLoadContext } from './load-context';
 
 export default defineConfig({
   plugins: [
+    /*
+      NOTE:
+      `getLoadContext` などの関数をプロキシに渡すときは, TSConfig の Path Alias が正しく機能しない.
+      そのため, `remix vite:dev` コマンドの前に `tsx` パッケージの `NODE_OPTIONS` を使って正しくパスを解決するようにした.
+      see: {@link package.json#scripts.dev}
+      ref: https://github.com/remix-run/remix/issues/9171#issuecomment-2119120941
+     */
+    tsconfigPaths(),
     remixCloudflareDevProxy({ getLoadContext }),
     remix({
       future: {
@@ -15,7 +23,6 @@ export default defineConfig({
         v3_lazyRouteDiscovery: true,
       },
     }),
-    tsconfigPaths(),
   ],
   ssr: {
     noExternal: ['restyle'],