Note: Published in Comic Hotmilk 2022-02

1. Gakuen Ura Service (学園裏サービス); Comic Hotmilk 2020-12 
2. Gakuen Ura Service EX Seikatsu Shidouka (学園裏サービスEX 性活指導課); Comic Hotmilk 2021-05 
3. Shishunki no Litmus (思春期のリトマス); Comic Hotmilk 2022-02

1-6. Gakuen Ura Service (学園裏サービス); Comic Hotmilk 2020-12, 2022-08, 2023-03,10, 2024-01, 10.
 7. Gakuen Ura Service EX Seikatsu Shidouka (学園裏サービスEX 性活指導課); Comic Hotmilk 2021-05
 8. Shishunki no Litmus (思春期のリトマス, The Litmus of Adolescence); Comic Hotmilk 2022-02

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