diff --git a/_config.yml b/_config.yml
index c8bb0065bbf6..81f055705139 100644
--- a/_config.yml
+++ b/_config.yml
@@ -107,12 +107,12 @@ author:
   name             : "jayhwang"
   avatar           : "/assets/images/ginzan_onsen_01.jpg" # path of avatar image, e.g. "/assets/images/bio-photo.jpg"
   bio              : "온천을 사랑하는 개발자"
-  location         : "Seoul, Korea, Republic of"
+  location         : "Korea, Republic of"
   email            :
   links:
     - label: "Email"
       icon: "fas fa-fw fa-envelope-square"
-      # url: "mailto:your.name@email.com"
+      url: "mailto:jayhwang.cloud@gmail.com"
     - label: "Website"
       icon: "fas fa-fw fa-link"
       # url: "https://your-website.com"
@@ -124,7 +124,7 @@ author:
       # url: "https://facebook.com/"
     - label: "GitHub"
       icon: "fab fa-fw fa-github"
-      # url: "https://github.com/"
+      url: "https://github.com/iloveonsen"
     - label: "Instagram"
       icon: "fab fa-fw fa-instagram"
       # url: "https://instagram.com/"
@@ -140,7 +140,7 @@ footer:
       # url:
     - label: "GitHub"
       icon: "fab fa-fw fa-github"
-      # url:
+      url: "https://github.com/iloveonsen"
     - label: "GitLab"
       icon: "fab fa-fw fa-gitlab"
       # url:
@@ -257,16 +257,16 @@ tag_archive:
   type: liquid
   path: /tags/
 # https://github.com/jekyll/jekyll-archives
-# jekyll-archives:
-#   enabled:
-#     - categories
-#     - tags
-#   layouts:
-#     category: archive-taxonomy
-#     tag: archive-taxonomy
-#   permalinks:
-#     category: /categories/:name/
-#     tag: /tags/:name/
+jekyll-archives:
+  enabled:
+    - categories
+    - tags
+  layouts:
+    category: archive-taxonomy
+    tag: archive-taxonomy
+  permalinks:
+    category: /categories/:name/
+    tag: /tags/:name/
 
 
 # HTML Compression
diff --git a/_data/navigation.yml b/_data/navigation.yml
index 6f30866f3bed..d36d641262c7 100644
--- a/_data/navigation.yml
+++ b/_data/navigation.yml
@@ -1,7 +1,11 @@
 # main links
 main:
-  - title: "Quick-Start Guide"
-    url: https://mmistakes.github.io/minimal-mistakes/docs/quick-start-guide/
+  - title: "Category"
+    url: /categories/
+  - title: "Tag"
+    url: /tags/
+  # - title: "Quick-Start Guide"
+  #   url: https://mmistakes.github.io/minimal-mistakes/docs/quick-start-guide/
   # - title: "About"
   #   url: https://mmistakes.github.io/minimal-mistakes/about/
   # - title: "Sample Posts"
diff --git a/_pages/404.md b/_pages/404.md
new file mode 100644
index 000000000000..2d9b56903bc7
--- /dev/null
+++ b/_pages/404.md
@@ -0,0 +1,26 @@
+---
+title: "Page Not Found"
+sitemap: true
+permalink: /404.html
+---
+
+<style type="text/css" media="screen">
+  .container {
+    margin: 10px auto;
+    max-width: 600px;
+    text-align: center;
+  }
+  h1 {
+    margin: 30px 0;
+    font-size: 4em;
+    line-height: 1;
+    letter-spacing: -1px;
+  }
+</style>
+
+<div class="container">
+  <h1>404</h1>
+
+  <p><strong>Page not found</strong></p>
+  <p>The requested page could not be found.</p>
+</div>
diff --git a/_pages/category-archive.md b/_pages/category-archive.md
new file mode 100644
index 000000000000..3cd6f6e06761
--- /dev/null
+++ b/_pages/category-archive.md
@@ -0,0 +1,7 @@
+---
+title: "Category"
+layout: categories
+permalink: /categories/
+author_profile: true
+sidebar_main: true
+---
\ No newline at end of file
diff --git a/_pages/tag-archive.md b/_pages/tag-archive.md
new file mode 100644
index 000000000000..58ae8e76afc6
--- /dev/null
+++ b/_pages/tag-archive.md
@@ -0,0 +1,7 @@
+---
+title: "Tag"
+layout: tags
+permalink: /tags/
+author_profile: true
+sidebar_main: true
+---
\ No newline at end of file
diff --git a/_posts/2023-10-20-hello-blog.md b/_posts/2023-10-20-hello-blog.md
index 453654917dff..ba151720108f 100644
--- a/_posts/2023-10-20-hello-blog.md
+++ b/_posts/2023-10-20-hello-blog.md
@@ -1,11 +1,33 @@
 ---
 title:  "Welcome to my blog!"
+categories: general
+tag: [python, test]
+toc: true
 ---
+## Hello world!
 
-**Hello world**, this is my first blog post.
+### General statement
+
+This is my first blog post.
 
 I hope you like it!
 
+### Update logs
+
 Testing real time server update...
 
-Comments by Giscus update...
\ No newline at end of file
+Comments by Giscus update...
+
+Add codes...
+
+```python
+import numpy as np
+
+var = np.arange(1, 20)
+```
+
+## Hello python!
+
+### How start with python?
+
+python is great.
\ No newline at end of file
diff --git a/google7bdb878df6715afc.html b/google7bdb878df6715afc.html
new file mode 100644
index 000000000000..cdf2430c4566
--- /dev/null
+++ b/google7bdb878df6715afc.html
@@ -0,0 +1 @@
+google-site-verification: google7bdb878df6715afc.html
\ No newline at end of file