diff --git a/README.md b/README.md
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+# set_lyric_R
+
+選択範囲をすっぴん休符にするUTAUプラグイン
+
+## 用途
+
+ハモリに作るときにどうぞ
+
+## 開発環境
+
+- Windows 10
+- Python 3.8.7
+- utaupy 1.11.3
\ No newline at end of file
diff --git a/plugin.txt b/plugin.txt
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+++ b/plugin.txt
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+name=�I��͈͂������҂�x���ɂ���(&0)
+execute=set_lyric_R.py
+shell=use
diff --git a/requirements.txt b/requirements.txt
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+++ b/requirements.txt
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+utaupy >= 1.11.3
diff --git a/set_lyric_R.py b/set_lyric_R.py
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+++ b/set_lyric_R.py
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+#!/usr/bin/env python3
+# Copyright (c) 2020 oatsu
+"""
+選択範囲を休符にするプラグイン
+"""
+from utaupy.utauplugin import run
+
+
+def set_lyric_R(plugin):
+    """
+    選択範囲の歌詞を休符にしてすっぴん化する。
+    """
+    for note in plugin.notes:
+        note.lyric = 'R'
+        note.suppin()
+
+
+if __name__ == '__main__':
+    run(set_lyric_R)