diff --git a/content/tutorial/nav.yml b/content/tutorial/nav.yml
index 8d498ab14..0df2f3939 100644
--- a/content/tutorial/nav.yml
+++ b/content/tutorial/nav.yml
@@ -1,111 +1,111 @@
-- title: Tutorial
+- title: 자습서
   items:
     - id: before-we-start-the-tutorial
-      title: Before We Start the Tutorial
+      title: 자습서를 시작하기 전에
       href: /tutorial/tutorial.html#before-we-start-the-tutorial
       forceInternal: true
       subitems:
         - id: what-are-we-building
-          title: What Are We Building?
+          title: 무엇을 만들게 될까요?
           href: /tutorial/tutorial.html#what-are-we-building
           forceInternal: true
         - id: prerequisites
-          title: Prerequisites
+          title: 필요한 선수 지식
           href: /tutorial/tutorial.html#prerequisites
           forceInternal: true
     - id: setup-for-the-tutorial
-      title: Setup for the Tutorial
+      title: 자습서를 위한 설정
       href: /tutorial/tutorial.html#setup-for-the-tutorial
       forceInternal: true
       subitems:
         - id: setup-option-1-write-code-in-the-browser
-          title: "Option 1: Write Code in the Browser"
+          title: "선택 1: 브라우저에 코드 작성하기"
           href: /tutorial/tutorial.html#setup-option-1-write-code-in-the-browser
           forceInternal: true
         - id: setup-option-2-local-development-environment
-          title: "Option 2: Local Development Environment"
+          title: "선택 2: 자신의 컴퓨터에서 코드 작성하기"
           href: /tutorial/tutorial.html#setup-option-2-local-development-environment
           forceInternal: true
         - id: help-im-stuck
-          title: Help, I'm Stuck!
+          title: 도움이 필요할 때!
           href: /tutorial/tutorial.html#help-im-stuck
           forceInternal: true
     - id: overview
-      title: Overview
+      title: 개요
       href: /tutorial/tutorial.html#overview
       forceInternal: true
       subitems:
         - id: what-is-react
-          title: What Is React?
+          title: React란 무엇일까요?
           href: /tutorial/tutorial.html#what-is-react
           forceInternal: true
         - id: inspecting-the-starter-code
-          title: Inspecting the Starter Code
+          title: 초기 코드 살펴보기
           href: /tutorial/tutorial.html#inspecting-the-starter-code
           forceInternal: true
         - id: passing-data-through-props
-          title: Passing Data Through Props
+          title: Props를 통해 데이터 전달하기
           href: /tutorial/tutorial.html#passing-data-through-props
           forceInternal: true
         - id: making-an-interactive-component
-          title: Making an Interactive Component
+          title: 사용자와 상호작용하는 컴포넌트 만들기
           href: /tutorial/tutorial.html#making-an-interactive-component
           forceInternal: true
         - id: developer-tools
-          title: Developer Tools
+          title: 개발 도구
           href: /tutorial/tutorial.html#developer-tools
           forceInternal: true
     - id: completing-the-game
-      title: Completing the Game
+      title: 게임 완성하기
       href: /tutorial/tutorial.html#completing-the-game
       forceInternal: true
       subitems:
         - id: lifting-state-up
-          title: Lifting State Up
+          title: State 올리기
           href: /tutorial/tutorial.html#lifting-state-up
           forceInternal: true
         - id: why-immutability-is-important
-          title: Why Immutability Is Important
+          title: 불변성이 왜 중요할까요?
           href: /tutorial/tutorial.html#why-immutability-is-important
           forceInternal: true
         - id: function-components
-          title: Function Components
+          title: 함수 컴포넌트
           href: /tutorial/tutorial.html#function-components
           forceInternal: true
         - id: taking-turns
-          title: Taking Turns
+          title: 순서 만들기
           href: /tutorial/tutorial.html#taking-turns
           forceInternal: true
         - id: declaring-a-winner
-          title: Declaring a Winner
+          title: 승자 선언하기
           href: /tutorial/tutorial.html#declaring-a-winner
           forceInternal: true
     - id: adding-time-travel
-      title: Adding Time Travel
+      title: 시간 여행 추가하기
       href: /tutorial/tutorial.html#adding-time-travel
       forceInternal: true
       subitems:
         - id: storing-a-history-of-moves
-          title: Storing a History of Moves
+          title: 움직임에 대한 히스토리 저장하기
           href: /tutorial/tutorial.html#storing-a-history-of-moves
           forceInternal: true
         - id: lifting-state-up-again
-          title: Lifting State Up, Again
+          title: 한 번 더, State 올리기
           href: /tutorial/tutorial.html#lifting-state-up-again
           forceInternal: true
         - id: showing-the-past-moves
-          title: Showing the Past Moves
+          title: 과거의 움직임 보여주기
           href: /tutorial/tutorial.html#showing-the-past-moves
           forceInternal: true
         - id: picking-a-key
-          title: Picking a Key
+          title: Key 선택하기
           href: /tutorial/tutorial.html#picking-a-key
           forceInternal: true
         - id: implementing-time-travel
-          title: Implementing Time Travel
+          title: 시간 여행 구현하기
           href: /tutorial/tutorial.html#implementing-time-travel
           forceInternal: true
         - id: wrapping-up
-          title: Wrapping Up
+          title: 마무리
           href: /tutorial/tutorial.html#wrapping-up
           forceInternal: true