diff --git a/docs/.vitepress/en.mts b/docs/.vitepress/en.mts
index eacd878..69d744c 100644
--- a/docs/.vitepress/en.mts
+++ b/docs/.vitepress/en.mts
@@ -7,18 +7,10 @@ export default defineConfig({
     // https://vitepress.dev/reference/default-theme-config
     nav: [
       { text: 'Home', link: '/' },
-      { text: 'Guide', link: '/what-is-ts-typekit' },
       { text: 'Reference', link: '/reference/built-in/Awaited' },
     ],
 
     sidebar: [
-      {
-        text: 'Introduction',
-        items: [
-          { text: 'What is ts-typekit?', link: '/what-is-ts-typekit' },
-          { text: 'Getting Started', link: '/getting-started' },
-        ],
-      },
       {
         text: 'Reference',
         items: [
@@ -27,18 +19,9 @@ export default defineConfig({
             items: [
               { text: 'Awaited', link: '/reference/built-in/Awaited' },
               { text: 'Capitalize', link: '/reference/built-in/Capitalize' },
-              {
-                text: 'ConstructorParameters',
-                link: '/reference/built-in/ConstructorParameters',
-              },
               { text: 'Exclude', link: '/reference/built-in/Exclude' },
               { text: 'Extract', link: '/reference/built-in/Extract' },
-              {
-                text: 'InstanceType',
-                link: '/reference/built-in/InstanceType',
-              },
               { text: 'Lowercase', link: '/reference/built-in/Lowercase' },
-              { text: 'NoInfer', link: '/reference/built-in/NoInfer' },
               { text: 'NonNullable', link: '/reference/built-in/NonNullable' },
               { text: 'Omit', link: '/reference/built-in/Omit' },
               { text: 'Parameters', link: '/reference/built-in/Parameters' },
diff --git a/docs/.vitepress/ko.mts b/docs/.vitepress/ko.mts
index b6ae826..61ab5df 100644
--- a/docs/.vitepress/ko.mts
+++ b/docs/.vitepress/ko.mts
@@ -7,18 +7,10 @@ export default defineConfig({
     // https://vitepress.dev/reference/default-theme-config
     nav: [
       { text: '홈', link: '/ko' },
-      { text: '가이드', link: '/ko/what-is-ts-typekit' },
       { text: '레퍼런스', link: '/ko/reference/built-in/Awaited' },
     ],
 
     sidebar: [
-      {
-        text: '소개',
-        items: [
-          { text: 'ts-typekit란 무엇인가?', link: '/ko/what-is-ts-typekit' },
-          { text: '시작하기', link: '/ko/getting-started' },
-        ],
-      },
       {
         text: '레퍼런스',
         items: [
@@ -27,18 +19,9 @@ export default defineConfig({
             items: [
               { text: 'Awaited', link: '/ko/reference/built-in/Awaited' },
               { text: 'Capitalize', link: '/ko/reference/built-in/Capitalize' },
-              {
-                text: 'ConstructorParameters',
-                link: '/ko/reference/built-in/ConstructorParameters',
-              },
               { text: 'Exclude', link: '/ko/reference/built-in/Exclude' },
               { text: 'Extract', link: '/ko/reference/built-in/Extract' },
-              {
-                text: 'InstanceType',
-                link: '/ko/reference/built-in/InstanceType',
-              },
               { text: 'Lowercase', link: '/ko/reference/built-in/Lowercase' },
-              { text: 'NoInfer', link: '/ko/reference/built-in/NoInfer' },
               {
                 text: 'NonNullable',
                 link: '/ko/reference/built-in/NonNullable',
diff --git a/docs/getting-started.md b/docs/getting-started.md
deleted file mode 100644
index bad5562..0000000
--- a/docs/getting-started.md
+++ /dev/null
@@ -1 +0,0 @@
-# Getting Started
diff --git a/docs/index.md b/docs/index.md
index 87bbed4..b82a9bf 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -6,9 +6,6 @@ hero:
   text: 'A Collection of TypeScript Utility Types'
   actions:
     - theme: brand
-      text: What is ts-typekit
-      link: /what-is-ts-typekit
-    - theme: alt
       text: Reference
       link: /reference/built-in/Awaited
 
diff --git a/docs/ko/reference/built-in/Awaited.md b/docs/ko/reference/built-in/Awaited.md
index 7135ced..08056f1 100644
--- a/docs/ko/reference/built-in/Awaited.md
+++ b/docs/ko/reference/built-in/Awaited.md
@@ -12,10 +12,6 @@
 
 이 타입은 하나의 타입 매개변수를 받으며, 이 매개변수는 해결된 타입을 추출하고자 하는 `Promise`를 나타내는 `Type`이에요.
 
-```ts
-type NewType = Awaited<Type>;
-```
-
 ## 예제
 
 #### 예제 #1
diff --git a/docs/reference/built-in/Awaited.md b/docs/reference/built-in/Awaited.md
index b679443..77cd181 100644
--- a/docs/reference/built-in/Awaited.md
+++ b/docs/reference/built-in/Awaited.md
@@ -12,10 +12,6 @@ The `Awaited<Type>` utility type is available starting from TypeScript version 4
 
 It takes one type parameter, which is the `Type` representing the `Promise` from which you want to extract the resolved type.
 
-```ts
-type NewType = Awaited<Type>;
-```
-
 ## Examples
 
 #### Example #1
diff --git a/docs/what-is-ts-typekit.md b/docs/what-is-ts-typekit.md
deleted file mode 100644
index 3703004..0000000
--- a/docs/what-is-ts-typekit.md
+++ /dev/null
@@ -1 +0,0 @@
-# What is ts-typekit?