[Hirokaworld (Hirokawa)] Shiikibi (Various) [Digital]
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
Otonano Omochiya 6 Kan
(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
Otonano Omochiya Vol. 16
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
[Hirokawa Tomo] Fresh Meat! [Chinese]
Otonano Omochiya Vol.6 - Ch.4-5
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)
(C62) [Knockout (Various)] Oshiri de Kyu! 7 (Various)
[COMIC] Penguinclub Sanzokuban 2003-02
Otonano Omochiya Vol. 14
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)
(C51) [Hiasobi Club (Fumizuki Kou)] NO BRAND LONELY WINTER
(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)
(C66) [Shuudan Bouryoku (Various)] File/12 Record of Aldelayd - EXHIBITION DX4
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
Otonano Omochiya Vol. 16
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [Chinese]
Otonano Omochiya 12 Futaba no Ohanashi Matome 12
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
大人のおもちや3巻
Men's Dolphin 1999-11-01 Vol.03
Otonano Omochiya Vol. 14
Haru Matsuri Chichi Matsuri 2010
[ANTHOLOGY] Meganekko Deluxe
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
[Amadeus No Isan] Rapid Game {To Heart 2}
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [English]
[Hirokawa Kouichirou] Deep Trip
[Anthology] Love Chara Taizen No. 7 (Various)
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
Otonano Omochiya Vol.13
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
[OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia Kaiteiban (Manabi Straight!)
(C78) [Shuudan Bouryoku (Various)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9
[Hirokawa Kouichirou] PET LIFE
[Anthology] Dennou Butou Musume Vol 5
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
(C65) [Infinity-Force (Various)] BL Are Go!! (Machine Robo Rescue)
(Puniket 9) [Marchen Box (Various)] Two Toned Romps (Pretty Cure)
[Hirokawa Tomo] Puripanyu Z
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!)
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
Otonano Omochiya Vol. 16
(Puniket 11) [Hirokaworld (Hirokawa)] Pachie-bon (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
[Anthology] Aokan Special
Otonano Omochiya 6 Kan
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
Otonano Omochiya 17
Otonano Omochiya Vol. 15
Otonano Omochiya Vol. 13
Otonano Omochiya 6 Kan
Men's Dolphin 1999-11-01 Vol.03
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
[Hirokawa Tomo] Fresh Meat!
(C69) [KNOCKOUT (Various)] Oshiri de Kyu! 9 (Various)
Otonano Omochiya Vol. 16
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
(CR35) [Abellcain (Fujimaru Arikui)] KALEIDOSCOPE (Kaleidostar)
After School XX Time
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
[Hirokaworld (Hirokawa)] Neko Ebon Plus
Otonano Omochiya 6 Kan
(C81) [OVACAS (Hirokawa Kouichirou)] SUITE&BITCH (Suite Precure)
(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
(C61) [Dangan Densetsu (Hirokawa Tomo)] Kirakira no Haru (AIR, Kanon)
Magical? Banana
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)
(C52) [Raimusha (Various)] Ebisu Taisen Kanzenban (Sakura Taisen)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan [English]
Ovacas Style 2008
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
COMIC Penguin Club Sanzokuban 2001-04
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
COMIC Penguin Club Sanzokuban 2000-09
COMIC Penguinclub Sanzokuban 2002-10
Tenshi ni Love Song o!
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(C77) [OVACAS (Hirokawa Kouichirou)] Love Style (Love Plus)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
Otonano Omochiya 17
Otonano Omochiya Vol.6 - Ch.4
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Pretty Cure)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
(C56) [Doudan Tsutsuji (Doudantsutsuji, Hirokawa Tomo)] Getten! (Mamotte Shugogetten)
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
(C73) [OVACAS (Hirokawa Kouichirou)] Banchou Densetsu (Minami-ke)
[Shuudan Bouryoku (集団暴力)] HOOLIGANISM File/10 RECORD OF ALDELAYD ExhibitionDX2
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)