Otonano Omochiya 6 Kan
[COMIC] Penguinclub Sanzokuban 2003-02
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
[Hirokaworld (Hirokawa)] petta
(C80) [OVACAS (Hirokawa Kouichirou)] A STYLE. (A Channel)
[Dangan Densetsu (Hirokawa Tomo)] Fairy Shape (Final Fantasy VIII)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
(C66) [INFINITY-FORCE (Mercy Rabbit)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan [English]
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
(C60) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 3 (Various)
[Kantou Usagi Gumi] Pink Kami Keikaku (Various)
[Anthology] Love Chara Taizen No. 7 (Various)
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
[Hirokawa Kouichirou] Deep Trip
Kono subarashī Amahito-chan no demisōsu!
Otonano Omochiya Vol. 1-14
(C77) [OVACAS (Hirokawa Kouichirou)] Love Style (Love Plus)
(Comic Castle 2005) [Abellcain (Fujimaru Arikui)] EUREKA FIGHT (Eureka seveN)
[Hirokawa Tomo] Puripanyu Z
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [English]
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Futari wa Precure)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
[Hirokawa Tomo] Fresh Meat! [Chinese]
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Pretty Cure)
COMIC Penguin Club Sanzokuban 2001-04
[Hirokawa Tomo] Fresh Meat!
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-hajimeru (My-HiME) [English] [SaHa]
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
(Puniket 9) [Marchen Box (Various)] Two Toned Romps (Pretty Cure)
(C73) [OVACAS (Hirokawa Kouichirou)] Banchou Densetsu (Minami-ke)
(Puniket 11) [Hirokaworld (Hirokawa)] Pachie-bon (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
(C81) [OVACAS (Hirokawa Kouichirou)] SUITE&BITCH (Suite Precure)
(C78) [Shuudan Bouryoku (Various)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9
(Puniket 9) [Hirokaworld (Hirokawa)] Nyaa Hon
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
[ANTHOLOGY] Meganekko Deluxe
[Hirokawa Tomo] Cherry Concerto
[Yumeizukosya, OVACAS (Hirokawa Kouichirou)] Ebisu Taisen (Sakura Taisen)
(C62) [Knockout (Various)] Oshiri de Kyu! 7 (Various)
Ovacas Style 2008
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
(CR35) [Abellcain (Fujimaru Arikui)] KALEIDOSCOPE (Kaleidostar)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!) [English] [biribiri]
(C56) [Doudan Tsutsuji (Doudantsutsuji, Hirokawa Tomo)] Getten! (Mamotte Shugogetten)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
Otonano Omochiya Vol.6 - Ch.4
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
COMIC Penguin Club Sanzokuban 2001-06
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)
KupaaBon 3
(C61) [Dangan Densetsu (Hirokawa Tomo)] Kirakira no Haru (AIR, Kanon)
COMIC Penguin Club Sanzokuban 2001-08 [Incomplete]
[Anthology] Love Chara Taizen No. 6
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
COMIC Penguinclub Sanzokuban 2003-08
After School XX Time
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
大人のおもちや3巻
(C78) [Shuudan Bouryoku (Murasaki Syu)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9 (English) =LWB=
[Tamaki Nozomu] Kokuminteki Kanojo Irokawa Mayu no Zenbu
(C61) [OVACAS (Hirokawa Kouichirou)] S.F.3.D (Various)
Magical? Banana
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
Otonano Omochiya Vol.6 - Ch.4-5
(Tougetsu-sai) [OVACAS (Hirokawa Kouichirou)] IYASI-K (Pani Poni)
[Shuudan Bouryoku (集団暴力)] HOOLIGANISM File/10 RECORD OF ALDELAYD ExhibitionDX2
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
COMIC Penguinclub Sanzokuban 2002-12
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
Two Toned Romps
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
[Amadeus No Isan] Rapid Game {To Heart 2}
Otonano Omochiya Vol. 14
(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
Otonano Omochiya 6 Kan Ch. 1
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time | After School XX Time (K-ON!) [English] [Darknight]
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)