Futanarin-chan ni Oshiri hora Retai!!
Female Disciple 女助教 Ch.1
[IZU Ya] Muchipuri Doujou 3 (Shijou Saikyou no Deshi Ken'ichi)
[Screamer] Onee-chan is a perv!
(C72)[Ohkura Bekkan (Ohkura Kazuya)] Miumiu (Shijou Saikyou no Deshi Kenichi)
[Spirits of Sperm - 液体の友社 (Shachi - しゃち)] 白濁グレイト (History's Strongest Disciple Kenichi)
(Kenichi Offical Fanbook) Bessatsu Kenichi
Shijou Saikyou no Feti?
[Shizaki Masayuki] Hageshisa to Amai Sasayaki
(C86) [HONEY BUMP (Nakatsugawa Minoru)] Shijou Saikyou no Deshi no Shishou Shigure 6 (History's Strongest Disciple Kenichi)
(SC35) [2B (MANA-KO)] Ryouzanpaku Onsen 4 ~Tokumori Tsuyudaku Shigure don~ (History's Strongest Disciple Kenichi)