(C93) [110-GROOVE (Itou Yuuji)] Sanyousei to Obenkyoukai (Touhou Project) [Chinese] [迷途竹林汉化]
[Aikuri] Obenkyou no Jikan, 2 Jikanme
(C89) [Yuusha-sama Go-ikkou (Nemigi Tsukasa)] Kashima Sensei to Obenkyoukai (Kantai Collection -KanColle-)
(C91) [JACK-POT (Jyura)] Fellatio Queen Reiko no Nichijou (Kochikame)
[Yuzu Machi] Obenkyou Yori Ochinchin ga Suki! | I Love Dick More Than Studying! (Digital Puni Pedo! Vol. 09) [English] [Tenua]
Shishunki no Obenkyou
Unicorn-chan to Himitsu no Obenkyoukai
(COMIC1☆10) [Flicker10 (Kuronyan)] Issho ni Obenkyou... Shiyokka? (Strike Witches)
Shishunki no Obenkyou Saishuu-banashi | Puberty Study Session Final Chapter
(C93) [NERCO (Koikawa Minoru)] Sanae Onee-chan de Obenkyou Shiyou! (Touhou Project) [Chinese] [CE家族社]
(C71)[Chika Sekai (Paruko Nagashima)] Mio Sensei to Obenkyou (BLUE DRAGON) [English]
Shishunki no Obenkyou 5 | Puberty Study Session 5
Obenkyou ≒ Sex
[Alfa126 (Hasumi Elan, Ikasenbe)] My Dear Little Rabbit Second Edition (With You ~Mitsumete Itai~) [2004-09-19]
Chiteki Bungaku Bishoujo to Ikimakuri Obenkyou Ecchi
Shishunki no Obenkyou chapter 6+sp
Shishunki no Obenkyou Ch.1-6
NOISE + Event Special Brochure
(Reitaisai 15) [Arutana (Chipa)] Kokoro Onee-chan to H na Obenkyou (Touhou Project)