(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
Capricon I - Director's Cut
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 15 [English]
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
Otonano Omochiya 6 Kan Ch. 1
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
Men's Dolphin 1999-11-01 Vol.03
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
Otonano Omochiya Vol. 14
[Hirokaworld (Hirokawa)] Neko Ebon Plus
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-Hajime (My-HiME)
(C73) [OVACAS (Hirokawa Kouichirou)] Banchou Densetsu (Minami-ke)
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
[Hirokawa Kouichirou] A to Z
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
Magical? Banana
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
(C66) [Shuudan Bouryoku (Various)] File/12 Record of Aldelayd - EXHIBITION DX4
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
Otonano Omochiya Vol. 16
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)
(C65) [Infinity-Force (Various)] BL Are Go!! (Machine Robo Rescue)
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
Otonano Omochiya Vol.6 - Ch.4
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
[Kantou Usagi Gumi] Pink Kami Keikaku (Various)
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!) [English] [biribiri]
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]
[Hirokaworld (Hirokawa)] Shiikibi (Various) [Digital]
COMIC Penguinclub Sanzokuban 2003-12
(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)
(C78) [Shuudan Bouryoku (Murasaki Syu)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9 (English) =LWB=
大人のおもちや3巻
Otonano Omochiya Vol. 13
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
Comic Sigma Volume 1
Otonano Omochiya Vol. 16
[Tamaki Nozomu] Kokuminteki Kanojo Irokawa Mayu no Zenbu
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
COMIC Penguinclub Sanzokuban 2002-12
(Puniket 9) [Hirokaworld (Hirokawa)] Nyaa Hon
COMIC Penguin Club Sanzokuban 2000-09
[Anthology] Dennou Butou Musume Vol 5
[Hirokawa Kouichirou] Deep Trip
(C65) [INFINITY-FORCE (Various)] BL Are Go!! (Machine Robo Rescue)
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
[Hirokawa Tomo] Cherry Concerto
Otonano Omochiya Vol. 14
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
[Anthology] Love Chara Taizen No. 7 (Various)
Otonano Omochiya Vol.6 - Ch.4-5
COMIC Penguinclub Sanzokuban 2003-08
Otonano Omochiya 6 Kan
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
[Dangan Densetsu (Hirokawa Tomo)] Fairy Shape (Final Fantasy VIII)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
(C56) [Doudan Tsutsuji (Doudantsutsuji, Hirokawa Tomo)] Getten! (Mamotte Shugogetten)
COMIC Penguin Club Sanzokuban 2001-04
(C78) [Shuudan Bouryoku (Various)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9
(Comic Castle 2005) [Abellcain (Fujimaru Arikui)] EUREKA FIGHT (Eureka seveN)