(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
COMIC AUN 2004-04 Vol. 95
Senzo ha Hiaburi
Two Toned Romps
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
COMIC AUN 2004-11 Vol. 102
COMIC RIN 2007-04 Vol. 28
(C61) [Naniwa Onsen Tamago Kumiai (Katsumi Kouichi)] G's style Type-Imouto III (Sister Princess)
(C75) [MugenKiDou A (Tomose Shunsaku)] Tora! Tora! Tora! (Toradora!) [English]
(SC33) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi Oshiyou. 02 (Ouran High School Host Club)
Jeanne Alter wa Maryoku Kyoukyuu o Shitai!?
(C64) [bolze. (rit.)] Kouichi ... Suki Yo (Ato) (Kizuato)
人付き合いが苦手な未亡人の雪女さんと呪いの指輪
Kachuusha Omorashi Manga
[Hitotsukami (Kitamura Kouichi)] Hazukashi Sugiru Kimodameshi
(C76) [J.O.C★e.go!! (Midori Kouichi)] Lucky Tune (Neon Genesis Evangelion) [English] [TyroLuuki]
(C70) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi o Shiyou. (Ouran High School Host Club) [English] [constantly]
Kouichi Takada - Man New Heart Too Ya Be Jean
[Mint Chocolate (Himuro Kouichi, Shigure Naoki)] Roshutsu Shoujo Megumi [Digital]
Tate yari Assortment
(C62) [ALPS, Okachimentaiko, Rippadou (Various)] Next Climax Magazine 11 - Kakutokei III (Various)
(COMIC1☆3) [Ashita no Kouda (Kouda Tomohiro)] Esuchu! (Zettai Karen Children)
COMIC RiN 2008-02
ヤバイ子
(C65) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Grand Canyon no Sugoi Yuri (Kaleido Star)
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time | After School XX Time (K-ON!) [English] [Darknight]
Comic Megastore 2001-12
[Circle Eden (Diisuke)] Akazawar (Another)
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
[Mint Chocolate (Himuro Kouichi)] Risky Stroll - Roshutsu Shoujo Saori
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
[Nanri Kouichirou] Ippatsume! ~First shot~
Hazukashisugiru Kantameshi
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)
[Nanri Kouichirou] Saga Shitataru Shizuku
COMIC Anthurium 2020-09
(C89) [Shobocon (Kitamura Tooru)] Nico-chan ga Ecchi da! | Nico's Thirsty! (Love Live!) [English] [Sexy Akiba Detectives]
(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
[Anthology] Tomoeda Gakuen File (Cardcaptor Sakura)
Kuriokawa
[Misato Kashiyama] Momori No Himiniku
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)
(C82) [Kacchuu Musume (Various)] Shikabame (Tasogare Otome x Amnesia, Sankarea, Kid Icarus)
Suika wa Kawa ga Sukeru made
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
COMIC Anthurium 2022-05
[Hitotsukami] Hazukashime no Kei [Digital]
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!)
Men's Dolphin 1999-11-01 Vol.03
(C75) [Sashichigai-dan (Kusano Kouichi, RAYMON)] Taiga Apaka (Toradora!)
Bunnyue to no Kake ni Katte H Suru Hon
Capricon I - Director's Cut
COMIC RiN 2007-07
[Hitotsukami] Catharsis in the Evening
COMIC RiN 2007-11
Mai Shield 21