[Takurou] Ecchi Tokidoki Obenkyou
Obenkyou no Jikan
Obenkyou ≒ Sex
Ningen no Obenkyou
(C89) [Yuusha-sama Go-ikkou (Nemigi Tsukasa)] Kashima Sensei to Obenkyoukai (Kantai Collection -KanColle-)
(C79) [Niratama (Sekihara Umina)] Yuri to Issho ni Obenkyou. (Heartcatch Precure!)
[Rokkaku Yasosuke] Obenkyou ≒ Sex + Osoto no Ishikawa-san (Sex no Shikumi!) [English] [Facedesk]
[Yuzu Machi] Obenkyou Yori Ochinchin ga Suki! | I Love Dick More Than Studying! (Digital Puni Pedo! Vol. 09) [English] [Tenua]
[Circle Bob (Brother Bob)] Gohoubi Time wa Ecchi na Obenkyou [Digital]
Shishunki no Obenkyou Ch. 1-2
(C93) [NERCO (Koikawa Minoru)] Sanae Onee-chan de Obenkyou Shiyou! (Touhou Project)
Mahou de Ecchi no Obenkyou!
(Reitaisai 15) [Arutana (Chipa)] Kokoro Onee-chan to H na Obenkyou (Touhou Project) [Chinese] [靴下汉化组]
Chiteki Bungaku Bishoujo to Ikimakuri Obenkyou Ecchi
Sanyousei to Obenkyoukai
Doki Doki Oyako Lesson~Oshiete H na Obenkyou~ Daiichiwa Complete Ban
Shishunki no obenkyou | Puberty Study Session
(C71)[Chika Sekai (Paruko Nagashima)] Mio Sensei to Obenkyou (BLUE DRAGON) [English]
[Aikuri] Obenkyou no Jikan
Seijino Obenkyou - STUDY OF XXXXX
[Inoue Nanaki] Muchi na Ojou-sama no Obenkyou | The Naïve Lady’s Naughty Study (ANGEL Club 2016-03) [English] [N04h]
Sanae Onee-chan de Obenkyou Shiyou!
(COMIC1☆10) [Flicker10 (Kuronyan)] Issho ni Obenkyou... Shiyokka? (Strike Witches)
Shishunki no Obenkyou Saishuuwa
Immoral na Obenkyou - Immoral Study | 부도덕한 공부
[Fuyuno Mikan] Mizugi de Obenkyou | Swimsuit Study! (COMIC LO 2015-01) [leoR8714個人漢化]
[Fuyuno Mikan] Love Collection "Mizugi de Obenkyou" Bangaihen (Petit Cawa Toranoana Gentei Shousasshi) [Chinese] [想抱雷妈汉化组&leoR8714]
(C89) [Coopy (Yomogi)] Chino-chan to Naisho no Obenkyou (Gochuumon wa Usagi desu ka?)
Misuzu-san no Obenkyou
Shishunki no Obenkyou | Puberty Study Session Ch. 1-6
Muchi na Ojou-sama no Obenkyou
(C84) [Shinsen Gokuraku (Shuragyoku Mami)] Hime-sama, Obenkyou no Ojikan desu. (Tales of the Abyss) [English] =Shinko.Aelith & Krizalid=
Mika Ganbaru Oshiete Ecchi na Obenkyou.
(Kouroumu 9) [Tonzura Douchuu (Kazawa)] Kokoro-chan Ecchi de Obenkyou (Touhou Project)
Unicorn-chan to Himitsu no Obenkyoukai
[Shouji Ayumu] Ecchi no Obenkyou | Sexy Studies (COMIC LO 2018-09) [English] [Doki Fansubs] [Digital]
[Mutou Koucha] Chiteki Bungaku Bishoujo to Ikimakuri Obenkyou Ecchi [Digital]
Shishunki no Obenkyou Ch.1-6
(C84) [Shinsen Gokuraku (Shuragyoku Mami)] Hime-sama, Obenkyou no Ojikan desu. (Tales of the Abyss)
(Reitaisai 15) [Arutana (Chipa)] Kokoro Onee-chan to H na Obenkyou (Touhou Project)
Yuri to Issho ni Obenkyou.
(Reitaisai 12) [Youyoumu (Nigo)] Youmu DAY's -Obenkyouhen- (Touhou Project)
Hare-chan no Obenkyou
Shishunki no Obenkyou
Kateikyoushi to Obenkyou
Shishunki no Obenkyou | Puberty Study Session Ch. 5
Mahou de Ecchi no Obenkyou! | Studying Sex with Magic!
Yuri to Issho ni Obenkyou. | Studying Together with Yuri.
Issho ni Obenkyou... Shiyokka? | Would You Like to... Study Together?
Shishunki no Obenkyou Ch.1-3
(Reitaisai 15) [Arutana (Chipa)] Kokoro Onee-chan to H na Obenkyou | Study-Time with Kokoro Onee-chan (Touhou Project) [English] [Mister lol]
Osananajimi to no Sugoshikata ~Obenkyoukai Hen~
Shishunki no Obenkyou Saishuu-banashi | Puberty Study Session Final Chapter