(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
[Hirokawa Kouichirou] PET LIFE
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
Otonano Omochiya 17
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
(C56) [Doudan Tsutsuji (Doudantsutsuji, Hirokawa Tomo)] Getten! (Mamotte Shugogetten)
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
COMIC Penguinclub Sanzokuban 2002-10
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time | After School XX Time (K-ON!) [English] [Darknight]
(C51) [Hiasobi Club (Fumizuki Kou)] NO BRAND LONELY WINTER
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 14 [English] [ChoriScans]
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
(Puniket 9) [Marchen Box (Various)] Two Toned Romps (Pretty Cure)
(C65) [Infinity-Force (Various)] BL Are Go!! (Machine Robo Rescue)
COMIC Penguinclub Sanzokuban 2003-12
COMIC Penguin Club Sanzokuban 2001-04
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Pretty Cure)
Otonano Omochiya Vol. 16
Otonano Omochiya Vol. 15
Takamori Aiko hamedori manga
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
[Hirokawa Tomo] Fresh Meat! [Chinese]
Ovacas Style 2008
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
Otonano Omochiya Vol. 14
大人のおもちや3巻
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [English]
(C60) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 3 (Various)
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
Otonano Omochiya Vol.13
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan [English]
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)
[Amadeus No Isan] Rapid Game {To Heart 2}
After School XX Time
Haru Matsuri Chichi Matsuri 2010
(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)
[ANTHOLOGY] Meganekko Deluxe
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
COMIC Penguin Club Sanzokuban 2001-06