Otonano Omochiya 6 Kan
(C61) [Dangan Densetsu (Hirokawa Tomo)] Kirakira no Haru (AIR, Kanon)
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
(C61) [OVACAS (Hirokawa Kouichirou)] S.F.3.D (Various)
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time | After School XX Time (K-ON!) [English] [Darknight]
[COMIC] Penguinclub Sanzokuban 2003-02
[Anthology] Love Chara Taizen No. 7 (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 15 [English]
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
Men's Dolphin 1999-11-01 Vol.03
[Hirokaworld (Hirokawa)] petta
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
(C66) [INFINITY-FORCE (Mercy Rabbit)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
[Hirokawa Tomo] Cherry Concerto
(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)
Otonano Omochiya Vol. 16
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
KupaaBon 3
(C51) [Hiasobi Club (Fumizuki Kou)] NO BRAND LONELY WINTER
(C90) [Hooliganism (Murasaki Syu, Hirokawa Kouichirou)] Kono Subarashii Demi-chan no Demi Sauce! (Demi-chan wa Kataritai, Kono Subarashii Sekai ni Syukufuku o!)
Otonano Omochiya 17
Otonano Omochiya Vol. 13
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 14 [English] [ChoriScans]
Otonano Omochiya Vol. 14
(C62) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 4 Sokuon (Azumanga-Daioh)
[Hirokaworld (Hirokawa)] Neko Ebon Plus
Otonano Omochiya 6 Kan Ch. 1
(C52) [Raimusha (Various)] Ebisu Taisen Kanzenban (Sakura Taisen)
(C81) [OVACAS (Hirokawa Kouichirou)] SUITE&BITCH (Suite Precure)
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
[Hirokawa Kouichirou] Deep Trip
大人のおもちや3巻
(C62) [Knockout (Various)] Oshiri de Kyu! 7 (Various)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!) [English] [biribiri]
COMIC Penguinclub Sanzokuban 2003-11
COMIC Penguinclub Sanzokuban 2002-10
[Anthology] Aokan Special
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
COMIC Penguinclub Sanzokuban 2002-12
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
COMIC Penguinclub Sanzokuban 2003-08
[Hirokawa Kouichirou] A to Z
(C65) [INFINITY-FORCE (Various)] BL Are Go!! (Machine Robo Rescue)
Ovacas Style 2008
Haru Matsuri Chichi Matsuri 2010
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
[Hirokaworld (Hirokawa)] Shiikibi (Various) [Digital]
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
Otonano Omochiya Vol. 1-14
(CR35) [Abellcain (Fujimaru Arikui)] KALEIDOSCOPE (Kaleidostar)