diff --git a/install/setup1.sh b/install/setup1.sh
index 0f513d71f0..91acd3cdb8 100644
--- a/install/setup1.sh
+++ b/install/setup1.sh
@@ -2,15 +2,16 @@ apt update && apt upgrade -y
 
 apt install -y curl wget gnupg apt-transport-https lsb-release ca-certificates
 
-# nodejs
+# Node.js
 curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
 echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list
 sudo apt-get update && sudo apt-get install nodejs -y
 
-# postgresql
+# PostgreSQL
 wget -O /usr/share/keyrings/postgresql.asc https://www.postgresql.org/media/keys/ACCC4CF8.asc
 echo "deb [signed-by=/usr/share/keyrings/postgresql.asc] http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/postgresql.list
 
+# 必要なパッケージをまとめてインストール
 apt update
 apt install -y \
   imagemagick ffmpeg libpq-dev libxml2-dev libxslt1-dev file git-core \
@@ -23,23 +24,22 @@ apt install -y \
 corepack enable
 yarn set version classic
 
+# mastodonユーザーを追加
 adduser --disabled-login mastodon
 
+# PostgreSQLにmastodonユーザーを追加
 sudo -u postgres psql << EOF
   CREATE USER mastodon WITH PASSWORD 'ohagi' CREATEDB;
 EOF
 
+# kmyblueソースコードをダウンロード
 su - mastodon <<EOF
-
-git clone https://github.com/kmycode/mastodon.git live && cd live
-git checkout $(git tag -l | grep -v 'rc[0-9]*$' | sort -V | tail -n 1)
+git clone https://github.com/kmycode/mastodon.git live
+cp /home/mastodon/live/install/setup2.sh /home/mastodon/setup2.sh
+chmod +x /home/mastodon/setup2.sh
 EOF
 
-chmod o+x /home/mastodon
-cp /home/mastodon/live/dist/nginx.conf /etc/nginx/sites-available/mastodon
-ln -s /etc/nginx/sites-available/mastodon /etc/nginx/sites-enabled/mastodon
-cp /home/mastodon/live/dist/mastodon-*.service /etc/systemd/system/
-systemctl daemon-reload
+# ---------------------------------------------------
 
 cat << EOF
 
@@ -47,8 +47,6 @@ cat << EOF
 
 Input this command to continue setup:
   sudo su - mastodon
-  cd live
-  chmod +x install/setup2.sh
-  install/setup2.sh
+  ./setup2.sh
 
 EOF
diff --git a/install/setup2.sh b/install/setup2.sh
index 7b8b1e7a80..88b1b82cce 100644
--- a/install/setup2.sh
+++ b/install/setup2.sh
@@ -1,4 +1,26 @@
+# gitで最新リリースを取得
+cd ~/live
+git checkout $(git tag -l | grep -E '^kb[0-9]' | grep -v 'rc[0-9]*$' | sort -V | tail -n 1)
+
 git clone https://github.com/rbenv/rbenv.git ~/.rbenv
 cd ~/.rbenv && src/configure && make -C src
 echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
 echo 'eval "$(rbenv init -)"' >> ~/.bashrc
+
+cp /home/mastodon/live/install/setup3.sh /home/mastodon/setup3.sh
+chmod +x /home/mastodon/setup3.sh
+cp /home/mastodon/live/install/setup4.sh /home/mastodon/setup4.sh
+chmod +x /home/mastodon/setup4.sh
+
+# ---------------------------------------------------
+
+cat << EOF
+
+============== [kmyblue setup script 2 completed] ================
+
+Input this command to continue setup:
+  exec bash
+  exit
+  sudo /home/mastodon/setup3.sh
+
+EOF
diff --git a/install/setup3.sh b/install/setup3.sh
index cd54b8f5d2..8d90e2b562 100644
--- a/install/setup3.sh
+++ b/install/setup3.sh
@@ -1,52 +1,18 @@
-git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
+# 必要なファイルをコピー
+chmod o+x /home/mastodon
+cp /home/mastodon/live/dist/nginx.conf /etc/nginx/sites-available/mastodon
+ln -s /etc/nginx/sites-available/mastodon /etc/nginx/sites-enabled/mastodon
+cp /home/mastodon/live/dist/mastodon-*.service /etc/systemd/system/
+systemctl daemon-reload
 
-RUBY_CONFIGURE_OPTS=--with-jemalloc rbenv install 3.2.2
-rbenv global 3.2.2
-
-gem install bundler --no-document
-
-cd ~/live
-
-yarn install --pure-lockfile
-
-bundle config deployment 'true'
-bundle config without 'development test'
-bundle install -j$(getconf _NPROCESSORS_ONLN)
+# ---------------------------------------------------
 
 cat << EOF
 
-============== [kmyblue setup script 2 completed] ================
+============== [kmyblue setup script 3 completed] ================
 
-PostgreSQL and Redis are now available on localhost.
-
-* PostgreSQL
-    host     : /var/run/postgresql
-    user     : mastodon
-    database : mastodon_production
-    password : ohagi
-
-* Redis
-    host     : localhost
-
-[IMPORTANT] Check PostgreSQL password before setup!
-
-Input this command to finish setup:
-  cd live
-  RAILS_ENV=production bundle exec rake mastodon:setup
-
-If you update kmyblue version, use following:
-  /home/mastodon/update
+Input this command to continue setup:
+  sudo su - mastodon
+  ./setup4.sh
 
 EOF
-
-
-# パスワード変更
-# sudo -u postgres psql << EOF
-#   ALTER USER mastodon WITH PASSWORD 'ohagi';
-# EOF
-
-# サーバー設定変更
-# sudo vi /etc/nginx/sites-available/mastodon
-
-# サーバー起動・OS起動時自動起動設定
-# systemctl enable --now mastodon-web mastodon-sidekiq mastodon-streaming
diff --git a/install/setup4.sh b/install/setup4.sh
new file mode 100644
index 0000000000..0af940e90a
--- /dev/null
+++ b/install/setup4.sh
@@ -0,0 +1,53 @@
+git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
+
+RUBY_CONFIGURE_OPTS=--with-jemalloc rbenv install 3.2.2
+rbenv global 3.2.2
+
+gem install bundler --no-document
+
+cd ~/live
+
+yarn install --pure-lockfile
+
+bundle config deployment 'true'
+bundle config without 'development test'
+bundle install -j$(getconf _NPROCESSORS_ONLN)
+
+rm ~/setup3.sh
+rm ~/setup4.sh
+
+# ---------------------------------------------------
+
+cat << EOF
+
+============== [kmyblue setup script 4 completed] ================
+
+PostgreSQL and Redis are now available on localhost.
+
+* PostgreSQL
+    host     : /var/run/postgresql
+    user     : mastodon
+    database : mastodon_production
+    password : ohagi
+
+* Redis
+    host     : localhost
+
+[IMPORTANT] Check PostgreSQL password before setup!
+
+Input this command to finish setup:
+  RAILS_ENV=production bundle exec rake mastodon:setup
+
+EOF
+
+
+# パスワード変更
+# sudo -u postgres psql << EOF
+#   ALTER USER mastodon WITH PASSWORD 'ohagi';
+# EOF
+
+# サーバー設定変更
+# sudo vi /etc/nginx/sites-available/mastodon
+
+# サーバー起動・OS起動時自動起動設定
+# systemctl enable --now mastodon-web mastodon-sidekiq mastodon-streaming