(C77) [OVACAS (Hirokawa Kouichirou)] Love Style (Love Plus)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(Tougetsu-sai) [OVACAS (Hirokawa Kouichirou)] IYASI-K (Pani Poni)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)
(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
Comic BonBobon! 2000-08
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Pretty Cure)
(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni)
Takamori Aiko hamedori manga
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)
(C60) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 3 (Various)
[Maihama Kaede] Oppai Mamire
(C61) [OVACAS (Hirokawa Kouichirou)] S.F.3.D (Various)
Ovacas Style 2008
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
[Yuzupon] HONEY
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
(C81) [OVACAS (Hirokawa Kouichirou)] SUITE&BITCH (Suite Precure)
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
Cow Girl's Breast Massage | El masaje de senos de la chica vaca
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
[Riko] Umi ni Ikou yo | Let's Go to the Beach! (Otokonoko Heaven's Door 1) [English] [captcarisma]
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!) [English] [biribiri]
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
[Amadeus No Isan] Rapid Game {To Heart 2}
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]
(C62) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 4 Sokuon (Azumanga-Daioh)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
[Yanagawa Rio] Mama to Yobenakute | I Can't Call Her Mama (Kinjirareta Asobi) [English] [Decensored]
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
Action Pizazz DX 2008-11
(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
[Takeki Michiaki] Darkside - Welcome To The Darkside [English]
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
After School XX Time
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-Hajime (My-HiME)
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)