diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..20e130e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "docs/themes/hugo-theme-learn"]
+	path = docs/themes/hugo-theme-learn
+	url = https://github.com/matcornic/hugo-theme-learn.git
diff --git a/README.md b/README.md
index 0c40792..e2e6379 100644
--- a/README.md
+++ b/README.md
@@ -42,3 +42,11 @@ Success : (Expr (Term (Term (Num "10")) "*" (Num "(" (Expr (Expr (Term (Num "20"
 $ echo "10 * (20 + 30)" | cargo run -p example_prebuild
 Success : (Expr (Term (Term (Num "10")) "*" (Num "(" (Expr (Expr (Term (Num "20"))) "+" (Term (Num "30"))) ")")))
 ```
+
+## Docs
+
+```
+$ make -C docs run
+```
+
+⇒ http://localhost:1313
diff --git a/docs/.gitignore b/docs/.gitignore
new file mode 100644
index 0000000..56af776
--- /dev/null
+++ b/docs/.gitignore
@@ -0,0 +1,2 @@
+public/
+*.lock
diff --git a/docs/Makefile b/docs/Makefile
new file mode 100644
index 0000000..827a929
--- /dev/null
+++ b/docs/Makefile
@@ -0,0 +1,19 @@
+FILEPATH =
+
+# Publish (./docs/public)
+publish:
+	hugo
+
+# Run (http://localhost:1313)
+run:
+	hugo server
+
+# New Chapter
+# - make chapter FILEPATH="chapter1/_index.md"
+chapter:
+	hugo new --kind chapter $(FILEPATH)
+
+# New Article
+# - make article FILEPATH="chapter1/article.md"
+article:
+	hugo new $(FILEPATH)
diff --git a/docs/archetypes/default.md b/docs/archetypes/default.md
new file mode 100644
index 0000000..00e77bd
--- /dev/null
+++ b/docs/archetypes/default.md
@@ -0,0 +1,6 @@
+---
+title: "{{ replace .Name "-" " " | title }}"
+date: {{ .Date }}
+draft: true
+---
+
diff --git a/docs/config.toml b/docs/config.toml
new file mode 100644
index 0000000..10289d3
--- /dev/null
+++ b/docs/config.toml
@@ -0,0 +1,28 @@
+title = "Copager Document"
+theme = "hugo-theme-learn"
+languageCode = "ja-JP"
+defaultContentLanguage = "ja"
+canonifyurls = true
+relativeURLs = true
+
+[outputs]
+home = ["HTML", "JSON"]
+
+[params]
+title = "Copager"
+description = "Copager Document"
+titleSeparator = "|"
+themeVariant = "blue"
+disableLandingPageButton = true
+disableShortcutsTitle = true
+
+[Languages]
+[Languages.ja]
+weight = 1
+languageName = "日本語"
+
+[[Languages.ja.menu.shortcuts]]
+name = "<i class='fab fa-fw fa-github'></i> Copager"
+identifier = "github-copager"
+url = "https://github.com/Tsukuba-Programming-Lab/Copager"
+weight = 1
diff --git a/docs/content/_index.md b/docs/content/_index.md
new file mode 100644
index 0000000..44e2d30
--- /dev/null
+++ b/docs/content/_index.md
@@ -0,0 +1,31 @@
+---
+title: "トップページ"
+date: 2024-09-02T00:00:00Z
+---
+
+# Copager Document
+
+![VERSION-Badge](https://img.shields.io/github/v/release/Tsukuba-Programming-Lab/Copager?style=for-the-badge)
+
+### 関連リンク
+
+- [Github - Copager](https://github.com/Tsukuba-Programming-Lab/Copager)
+
+### ライセンス
+
+#### Copager
+
+Copyright 2024 Yuta NAKAGAMI\
+Copyright 2024 Tsukuba-Programming-Lab
+
+#### lynx
+
+Copyright (c) 2021 James Panther (https://jamespanther.com)
+
+#### hugo-theme-learn
+
+Copyright (c) 2014 Grav\
+Copyright (c) 2016 MATHIEU CORNIC\
+Copyright (c) 2017 Valere JEANTET
+
+[LICENSE.md](https://github.com/matcornic/hugo-theme-learn/blob/master/LICENSE.md)
diff --git a/docs/layouts/partials/logo.html b/docs/layouts/partials/logo.html
new file mode 100644
index 0000000..e5082a6
--- /dev/null
+++ b/docs/layouts/partials/logo.html
@@ -0,0 +1,8 @@
+<a href="/">
+    <b style="
+        font-size: 3em;
+        color: #fff;
+    ">
+        Copager
+    </b>
+</a>
diff --git a/docs/themes/hugo-theme-learn b/docs/themes/hugo-theme-learn
new file mode 160000
index 0000000..3202533
--- /dev/null
+++ b/docs/themes/hugo-theme-learn
@@ -0,0 +1 @@
+Subproject commit 3202533a746f91c67de1a8fa373c0328ec1b403d