diff --git a/.pnp.cjs b/.pnp.cjs
index 11d22bb..7670deb 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -28,9 +28,9 @@ const RAW_RUNTIME_STATE =
         "packageLocation": "./",\
         "packageDependencies": [\
           ["@next/eslint-plugin-next", "npm:14.2.3"],\
-          ["@nf-team/core", "npm:2.1.0"],\
+          ["@nf-team/core", "npm:3.0.1"],\
           ["@nf-team/eslint-config", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:3.4.0"],\
-          ["@nf-team/react", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.1"],\
+          ["@nf-team/react", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.2"],\
           ["@nf-team/stylelint-config", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:1.1.1"],\
           ["@tanem/react-nprogress", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:5.0.48"],\
           ["@tanstack/react-query", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:5.59.16"],\
@@ -1608,10 +1608,10 @@ const RAW_RUNTIME_STATE =
       }]\
     ]],\
     ["@nf-team/core", [\
-      ["npm:2.1.0", {\
-        "packageLocation": "./.yarn/cache/@nf-team-core-npm-2.1.0-c5b1c29f0b-d1626bd75f.zip/node_modules/@nf-team/core/",\
+      ["npm:3.0.1", {\
+        "packageLocation": "./.yarn/cache/@nf-team-core-npm-3.0.1-20c4cddc8a-16f0912284.zip/node_modules/@nf-team/core/",\
         "packageDependencies": [\
-          ["@nf-team/core", "npm:2.1.0"]\
+          ["@nf-team/core", "npm:3.0.1"]\
         ],\
         "linkType": "HARD"\
       }]\
@@ -1672,17 +1672,17 @@ const RAW_RUNTIME_STATE =
       }]\
     ]],\
     ["@nf-team/react", [\
-      ["npm:2.7.1", {\
-        "packageLocation": "./.yarn/cache/@nf-team-react-npm-2.7.1-4df50df0a5-bf13a0df2c.zip/node_modules/@nf-team/react/",\
+      ["npm:2.7.2", {\
+        "packageLocation": "./.yarn/cache/@nf-team-react-npm-2.7.2-6f8b8a3e9c-037cc7dc3f.zip/node_modules/@nf-team/react/",\
         "packageDependencies": [\
-          ["@nf-team/react", "npm:2.7.1"]\
+          ["@nf-team/react", "npm:2.7.2"]\
         ],\
         "linkType": "SOFT"\
       }],\
-      ["virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.1", {\
-        "packageLocation": "./.yarn/__virtual__/@nf-team-react-virtual-c762f35f82/0/cache/@nf-team-react-npm-2.7.1-4df50df0a5-bf13a0df2c.zip/node_modules/@nf-team/react/",\
+      ["virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.2", {\
+        "packageLocation": "./.yarn/__virtual__/@nf-team-react-virtual-697c95fbb3/0/cache/@nf-team-react-npm-2.7.2-6f8b8a3e9c-037cc7dc3f.zip/node_modules/@nf-team/react/",\
         "packageDependencies": [\
-          ["@nf-team/react", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.1"],\
+          ["@nf-team/react", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.2"],\
           ["@types/react", "npm:18.3.1"],\
           ["@types/react-dom", "npm:18.3.0"],\
           ["react", "npm:18.3.1"],\
@@ -3406,9 +3406,9 @@ const RAW_RUNTIME_STATE =
         "packageDependencies": [\
           ["birth-tunes-frontend", "workspace:."],\
           ["@next/eslint-plugin-next", "npm:14.2.3"],\
-          ["@nf-team/core", "npm:2.1.0"],\
+          ["@nf-team/core", "npm:3.0.1"],\
           ["@nf-team/eslint-config", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:3.4.0"],\
-          ["@nf-team/react", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.1"],\
+          ["@nf-team/react", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:2.7.2"],\
           ["@nf-team/stylelint-config", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:1.1.1"],\
           ["@tanem/react-nprogress", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:5.0.48"],\
           ["@tanstack/react-query", "virtual:e45e09d0641e8463a15803d185f02794e031faf4b29c11a027f9ba60c39d2250637c8c06b3b1e44481a91dce533952ebaf555d9883fc1491921c88f1da58906f#npm:5.59.16"],\
diff --git a/.yarn/cache/@nf-team-core-npm-2.1.0-c5b1c29f0b-d1626bd75f.zip b/.yarn/cache/@nf-team-core-npm-2.1.0-c5b1c29f0b-d1626bd75f.zip
deleted file mode 100644
index aa89c27..0000000
Binary files a/.yarn/cache/@nf-team-core-npm-2.1.0-c5b1c29f0b-d1626bd75f.zip and /dev/null differ
diff --git a/.yarn/cache/@nf-team-core-npm-3.0.1-20c4cddc8a-16f0912284.zip b/.yarn/cache/@nf-team-core-npm-3.0.1-20c4cddc8a-16f0912284.zip
new file mode 100644
index 0000000..7bdc400
Binary files /dev/null and b/.yarn/cache/@nf-team-core-npm-3.0.1-20c4cddc8a-16f0912284.zip differ
diff --git a/.yarn/cache/@nf-team-react-npm-2.7.1-4df50df0a5-bf13a0df2c.zip b/.yarn/cache/@nf-team-react-npm-2.7.2-6f8b8a3e9c-037cc7dc3f.zip
similarity index 81%
rename from .yarn/cache/@nf-team-react-npm-2.7.1-4df50df0a5-bf13a0df2c.zip
rename to .yarn/cache/@nf-team-react-npm-2.7.2-6f8b8a3e9c-037cc7dc3f.zip
index f3a0513..04fa8c5 100644
Binary files a/.yarn/cache/@nf-team-react-npm-2.7.1-4df50df0a5-bf13a0df2c.zip and b/.yarn/cache/@nf-team-react-npm-2.7.2-6f8b8a3e9c-037cc7dc3f.zip differ
diff --git a/package.json b/package.json
index 1ebc769..bc0a5cf 100644
--- a/package.json
+++ b/package.json
@@ -27,8 +27,8 @@
   },
   "homepage": "https://github.com/mbti-nf-team/birth-tunes-frontend#readme",
   "dependencies": {
-    "@nf-team/core": "^2.1.0",
-    "@nf-team/react": "^2.7.1",
+    "@nf-team/core": "^3.0.1",
+    "@nf-team/react": "^2.7.2",
     "@tanem/react-nprogress": "^5.0.48",
     "@tanstack/react-query": "^5.59.16",
     "axios": "^1.4.0",
diff --git a/src/app/page.tsx b/src/app/page.tsx
index f730b37..ff3911c 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -1,6 +1,6 @@
 import { Metadata, ResolvingMetadata } from 'next';
 
-import { removeNullable } from '@nf-team/core';
+import { getStringOrDefault } from '@nf-team/core';
 import dayjs from 'dayjs';
 
 import Footer from '@/components/Footer';
@@ -45,7 +45,7 @@ export async function generateMetadata(
 }
 
 function Home({ searchParams }: Props) {
-  const defaultBirthDate = removeNullable(searchParams?.date);
+  const defaultBirthDate = getStringOrDefault(searchParams?.date);
 
   const isNotValidDefaultDate = defaultBirthDate
     && (!dayjs(defaultBirthDate).isValid() || dayjs().isBefore(dayjs(defaultBirthDate)));
diff --git a/src/components/main/BirthSelectDatePicker/index.tsx b/src/components/main/BirthSelectDatePicker/index.tsx
index 0656098..98ca3a7 100644
--- a/src/components/main/BirthSelectDatePicker/index.tsx
+++ b/src/components/main/BirthSelectDatePicker/index.tsx
@@ -2,7 +2,7 @@ import {
   ChangeEvent, Dispatch, SetStateAction, useCallback, useEffect, useMemo, useState,
 } from 'react';
 
-import { checkNumber, generateArrayOfNumber } from '@nf-team/core';
+import { createNumberArray, getNumberOrDefault } from '@nf-team/core';
 import { useUpdateEffect } from '@nf-team/react';
 import dayjs from 'dayjs';
 
@@ -55,7 +55,7 @@ function BirthSelectDatePicker({ defaultBirthDate, onBirthChange }: Props) {
     if (year && month) {
       const targetDays = dayjs(`${year}-${month}`).daysInMonth();
 
-      setDaysRange(checkNumber(targetDays));
+      setDaysRange(getNumberOrDefault(targetDays));
     }
   }, [month, year]);
 
@@ -80,7 +80,7 @@ function BirthSelectDatePicker({ defaultBirthDate, onBirthChange }: Props) {
   return (
     <div className={styles.birthSelectDatePickerWrapper}>
       <SelectBox id="year" emptyOption="생년" value={year} onChange={handleChange('year')}>
-        {generateArrayOfNumber(yearRange).map((number) => {
+        {createNumberArray(yearRange).map((number) => {
           const targetYear = nowYear - number;
 
           return (
@@ -89,7 +89,7 @@ function BirthSelectDatePicker({ defaultBirthDate, onBirthChange }: Props) {
         })}
       </SelectBox>
       <SelectBox id="month" emptyOption="월" value={month} onChange={handleChange('month')}>
-        {generateArrayOfNumber(monthRange).map((number) => {
+        {createNumberArray(monthRange).map((number) => {
           const targetMonth = number + 1;
 
           return (
@@ -98,7 +98,7 @@ function BirthSelectDatePicker({ defaultBirthDate, onBirthChange }: Props) {
         })}
       </SelectBox>
       <SelectBox id="days" emptyOption="일" value={days} onChange={handleChange('days')} disabled={!year || !month}>
-        {generateArrayOfNumber(daysRange).map((day) => {
+        {createNumberArray(daysRange).map((day) => {
           const targetDays = day + 1;
 
           return (
diff --git a/src/components/main/BirthSongResult/index.tsx b/src/components/main/BirthSongResult/index.tsx
index b8d9bfe..95cba89 100644
--- a/src/components/main/BirthSongResult/index.tsx
+++ b/src/components/main/BirthSongResult/index.tsx
@@ -2,7 +2,7 @@
 
 import { useCallback, useEffect, useRef } from 'react';
 
-import { removeNullable } from '@nf-team/core';
+import { getStringOrDefault } from '@nf-team/core';
 import { DelayRenderComponent } from '@nf-team/react';
 import { useQuery } from '@tanstack/react-query';
 import clsx from 'clsx';
@@ -124,7 +124,9 @@ function BirthSongResult({ birthDate }: Props) {
                 {findBirthSong?.title}
               </div>
             </FrameTitle>
-            <IframeVideoPlayer youtubeVideoId={removeNullable(findBirthSong?.youtube_video_id)} />
+            <IframeVideoPlayer
+              youtubeVideoId={getStringOrDefault(findBirthSong?.youtube_video_id)}
+            />
           </div>
           <Button buttonType="secondary" type="button" onClick={onClickShareLink}>결과 공유하기</Button>
         </div>
diff --git a/yarn.lock b/yarn.lock
index f299bdb..03f4c4a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1002,10 +1002,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@nf-team/core@npm:^2.1.0":
-  version: 2.1.0
-  resolution: "@nf-team/core@npm:2.1.0"
-  checksum: 10/d1626bd75ff37bfa5871469117e45909597da2ae5f5c497b631fecfb9f681ae8f1243a5e99f7af2564352f298d30d1e8b0086748ecaf7fe5d6543dc16e4940d7
+"@nf-team/core@npm:^3.0.1":
+  version: 3.0.1
+  resolution: "@nf-team/core@npm:3.0.1"
+  checksum: 10/16f0912284bebaf66245d0a4050f02ad97f7dfaa22be7d25b92dd79af5247caae3fe7651ed76aee4add835a4362209572a33c1a56d0a2aaa6031543fd0e71992
   languageName: node
   linkType: hard
 
@@ -1038,13 +1038,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@nf-team/react@npm:^2.7.1":
-  version: 2.7.1
-  resolution: "@nf-team/react@npm:2.7.1"
+"@nf-team/react@npm:^2.7.2":
+  version: 2.7.2
+  resolution: "@nf-team/react@npm:2.7.2"
   peerDependencies:
     react: ^18
     react-dom: ^18
-  checksum: 10/bf13a0df2ca47552cface1789de681c56340ac48209d270ed2670e4887f2a0a735cc5cf15a7e421730b502ce3fb6fcd8d8d73795d2a6b44f4aed9943e2b61f3d
+  checksum: 10/037cc7dc3f6910b9681c7054f972f880366175a5d638ffd457cd2426b74647ade803a3aeb7d7931f0171f14e2af8036cfda1c61587130030fa44ddf14a56cf0c
   languageName: node
   linkType: hard
 
@@ -2332,9 +2332,9 @@ __metadata:
   resolution: "birth-tunes-frontend@workspace:."
   dependencies:
     "@next/eslint-plugin-next": "npm:^14.2.3"
-    "@nf-team/core": "npm:^2.1.0"
+    "@nf-team/core": "npm:^3.0.1"
     "@nf-team/eslint-config": "npm:^3.4.0"
-    "@nf-team/react": "npm:^2.7.1"
+    "@nf-team/react": "npm:^2.7.2"
     "@nf-team/stylelint-config": "npm:^1.1.1"
     "@tanem/react-nprogress": "npm:^5.0.48"
     "@tanstack/react-query": "npm:^5.59.16"