Group ovacas

(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)

[OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia Kaiteiban (Manabi Straight!)

(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni Dash!)

(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)

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

(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)

(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)

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

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

(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)

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

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

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

(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)

(C81) [OVACAS (Hirokawa Kouichirou)] SUITE&BITCH (Suite Precure)

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

(CR30) [OVACAS (Hirokawa Kouichirou, Fujimaru Arikui)] Apocrypha (Angelic Layer)

(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)

(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)

(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)