Rean Kyoukan no Tokubetsu Kagai Jugyou
(C89) [TKSpower (Zekkyosyu)] ※Hoshuu Jugyou desu. (ToHeart2)
(C90) [H-SQUAD (Guglielmo)] Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~ [Chinese] [沒有漢化]
[Hirose Miho] Himitsu no Kagai Jugyou
On'na kishi no kagai katsudō (Mahou Shoujo Ikusei Keikaku
Classmate to Ecchi Jugyou Ch. 2
[Goban] Iinchou no Kagai Jugyou | Class President's Extracurricular Lesson (Comic Megastore H 2012-05) [English] {numberkawshin} [Digital]
[Q] Kagai Lesson | Extracurricular Torture [Lesson] (Fujouri na Nyotai Kousoku) [English] [Risette] [Digital]
[Fuusen Club] Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~ [Digital]
[Mizuyuki] Futari no Naisho no ××× (COMIC HOTMILK 2016-06) [Chinese] [無邪気漢化組]
[Nyoroman Shouji] Mucchimuchi Keiko Sensei no Chou Nikkan Dohentai Jugyou! "Muchimuchi Roshutsu Choukyou Aheahe Chigoku Hen" (Kekko Kamen)
Glenn Sensei no Rokudenashi Kagai Jugyou
Kyou mo Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi
[Maruta] Boku to Kanojo no Hikakuteki Naisho no Nichijou Conclusion (English)
(SC2017 Summer) [mocomocodo (Nukunuku Batten)] Glenn Sensei no Rokudenashi Kagai Jugyou (Rokudenashi Majutsu Koushi to Akashic Records) [Chinese] [oo君個人漢化]
(SC24) [Naisho No Usagi Koya (Usakun)] Gohoubi Suimingu
[Rokuichi] Ririn-san no Naisho no Kao to Daiji na Oheya | Ririn-san's Secret Expression and Her Precious Room (COMIC HOTMILK 2018-07) [English] [Stupid Beast] [Digital]
Tsuya Ane ~Onee-san no Micchaku Jugyou~
[Babymaker (Beco)] Naisho no Kozukuri [English] [MintVoid]
(SUPER23) [Dogfes (sio)] Kagai Jugyou (Ansatsu Kyoushitsu)
(C94) [Kitsuneya (Leafy)] Chibikko Eirei to Naisho no Okusuri Techou - Young lady hero secret medicine notebook (Fate/Grand Order)
[Keno Yantarou] Hageshii Kagai Jugyou
Sensei Daa~isuki!! Houkago no Ikenai kedo Ikechau Hoshuu Jugyou
(C92) [666PROTECT (Jingrock)] Tenkousei JK Elf 3 -Houkago Yagai Jugyou- | High School Elven Transfer Student -After School Outdoor Lessons- [English] [Tremalkinger]
Riritama Hoshuu Jugyou! - Riritama Supplementary Lessons!
(SC26) [PLUM (Kisaragi Kanna)] Naisho! (Sukatto Golf Pangya)
[ARI] Naisho No Hokenshitsu (COMIC Penguin Celeb 2015-03) [Chinese] [上古勤受荣誉呈献]
(C72) [MURDERHOUSE (Workaholic)] Boku to Mama no Naisho (Keroro Gunsou)
Tenshi no Houkago Jugyou Chapter 7
[Babymaker (Beco)] Naisho no Kozukuri 2
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica) [English]
(SC2015 Autumn) [Ame Usagi (Amedamacon)] Naisho no Hokenshitsu (Gochuumon wa Usagi desu ka?)
(C92) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 3
(C83) [CIrcle Ohigetan (Ohigetan)] Ohigebon-35 Classmate Ochinchin Jugyou Sankan