The first volume in the “Imouto Series”

1. Imouto wa Kayugari (義妹はかゆがり); Comic Penguin Club 2010-08
2. Imouto Control (義妹コントロール); Comic Penguin Club 2011-03
3. Imouto wa Samugari (義妹は寒がり); Comic Penguin Club 2010-05
4. Namaiki na Imouto (ナマイキな義妹); Comic Penguin Club 2010-06
5. Imouto mo Giri Giri (義妹のギリギリ); Comic Penguin Club 2010-07
6. Imouto wa Present (義妹はプレゼント); Comic Penguin Club 2010-09
7. Imouto wa Atsugari (義妹は暑がり); Comic Penguin Club 2010-10
8-9. Imouto Chuudoku (義妹チュー毒); Comic Penguin Club 2010-11, 12
10. Imouto to Asa made Nama... (義妹と朝まで生…); Comic Penguin Club 2011-01
11. Imouto ni Present (義妹にプレゼント); Comic Penguin Club 2011-02
12. Imouto wa Sore wo Gaman Dekinai (義妹はそれを我慢できない); Comic Penguin Club 2010-04