Artiste hirokawa kouichirou

(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)

(C88) [Nipopo Crisis, OVACAS, Abel Cain (Kakusho Ichien, Hirokawa Koichiro, Fujimaru Arikui)] Mokei Jouhou (Gundam Build Fighters Try)

[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)

[Anthology] G-Cup Bakunyuu Gumi

[Chokudoukan (Various)] KupaaBon 3 (Various) [2008-05-07]

(Puniket 9) [Marchen BOX (Various)] Two Toned Romps (Futari wa Pretty Cure)

(C96) [Hooliganism (Various)] Machi de Uwasa no Bajiru o Musaboru Shoujo

(C52) [Raimusha (Various)] Ebisu Taisen Kanzenban (Sakura Taisen)

Men's Dolphin 1999-11-01 Vol.03

(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)

(C90) [Hooliganism (Murasaki Syu, Hirokawa Kouichirou)] Kono Subarashii Demi-chan no Demi Sauce! (Demi-chan wa Kataritai, Kono Subarashii Sekai ni Syukufuku o!)

(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)

[Anthology] Aokan Special

(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)

[Shuudan Bouryoku (Murasaki Syu)] Takanashi-san-chi no 4 Shimai - 1 (WORKING!!)

[Yumeizukosya, OVACAS (Hirokawa Kouichirou)] Ebisu Taisen (Sakura Taisen)

(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)

(C80) [OVACAS (Hirokawa Kouichirou)] A STYLE. (A Channel)

(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)