Iinchou to Obenkyou

[Yuzu Machi] Obenkyou Yori Ochinchin ga Suki! | I Love Dick More Than Studying! (Digital Puni Pedo! Vol. 09) [English] [Tenua]

[Momo] Iinchou to Obenkyou

[Hisamaru Hajimeya (Hisamaru Hajime)] Sanpai! Kuso Zako Taimashi Iinchou ~Taima Kousan Fuuki Iinchou wa Sennou Kougeki ni Kanpai, Kyousei Jinkaku Haisetsu de Jinsei Shuuryoushimashita.~（chinese）

(C93) [NERCO (Koikawa Minoru)] Sanae Onee-chan de Obenkyou Shiyou! (Touhou Project) [Chinese] [CE家族社]

[Inoue Nanaki] Muchi na Ojou-sama no Obenkyou | The Naïve Lady’s Naughty Study (ANGEL Club 2016-03) [English] [N04h]

(C60) [Studio Wallaby (Niiruma Kenji)] Iinchou Choiin (Rival Schools)

(C94) [Makai no Kaniya (Kanihara Taraba, Devil)] Tatsuta Onee-chan to Obenkyou (Kantai Collection -KanColle-)

[Dennou Denpa Kenkyuusho (Harukaze Koucha)] Kansaiteki Iinchou Nishi Kara Kita Iinchou... (ToHeart)

(Reitaisai 15) [Arutana (Chipa)] Kokoro Onee-chan to H na Obenkyou (Touhou Project)

(C50) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Iinchou Tottemo Guai Ga Iinchou (Neon Genesis Evangelion)