(C56) [Doudan Tsutsuji (Doudantsutsuji, Hirokawa Tomo)] Getten! (Mamotte Shugogetten)
大人のおもちや3巻
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
[Anthology] Love Chara Taizen No. 6
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan
(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 Vol. 16
Men's Dolphin 1999-11-01 Vol.03
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-hajimeru (My-HiME) [English] [SaHa]
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
Otonano Omochiya Vol.6 - Ch.4
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
[Hirokawa Kouichirou] PET LIFE
Otonano Omochiya Vol. 14
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan [English]
COMIC Penguinclub Sanzokuban 2003-08
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Pretty Cure)
Tenshi ni Love Song o!
(C78) [Shuudan Bouryoku (Various)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9
(Comic Castle 2005) [Abellcain (Fujimaru Arikui)] EUREKA FIGHT (Eureka seveN)
[Tamaki Nozomu] Kokuminteki Kanojo Irokawa Mayu no Zenbu
[Anthology] Love Chara Taizen No. 7 (Various)
[ANTHOLOGY] Meganekko Deluxe
[Shuudan Bouryoku (Murasaki Syu)] Takanashi-san-chi no 4 Shimai - 1 (WORKING!!)
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
(CR27) [Dangan Densetsu Laser (Hirokawa Tomo, Nerima Yoshito)] Kairaku Gensoku Hagurumashiki Soutei Souchi (Revolutionary Girl Utena)
[COMIC] Penguinclub Sanzokuban 2003-02
[Anthology] Dennou Butou Musume Vol 5
Takamori Aiko hamedori manga
COMIC Penguin Club Sanzokuban 2001-04
Comic Sigma Volume 1
(C80) [OVACAS (Hirokawa Kouichirou)] A STYLE. (A Channel)
(C61) [OVACAS (Hirokawa Kouichirou)] S.F.3.D (Various)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [English]
(C81) [OVACAS (Hirokawa Kouichirou)] SUITE&BITCH (Suite Precure)
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
(Tougetsu-sai) [OVACAS (Hirokawa Kouichirou)] IYASI-K (Pani Poni)
(Puniket 9) [Hirokaworld (Hirokawa)] Nyaa Hon
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
(C51) [Hiasobi Club (Fumizuki Kou)] NO BRAND LONELY WINTER
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
Ovacas Style 2008
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)
COMIC Penguin Club Sanzokuban 2001-06
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
[Hirokaworld (Hirokawa)] petta
[Otonano Omochiya (Hirokawa,Yukito)] Otonano Omochiya Vol.13 [Chinese]
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]
[Hirokawa Kouichirou] Deep Trip
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
COMIC Penguinclub Sanzokuban 2002-10
Pachie-bon
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
Otonano Omochiya 6 Kan
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 15 [English]
(C52) [Raimusha (Various)] Ebisu Taisen Kanzenban (Sakura Taisen)
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
[Hirokaworld (Hirokawa)] Neko Ebon Plus
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
(C69) [KNOCKOUT (Various)] Oshiri de Kyu! 9 (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
Otonano Omochiya Vol. 15
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
[Hirokawa Kouichirou] A to Z
(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
(C66) [Shuudan Bouryoku (Various)] File/12 Record of Aldelayd - EXHIBITION DX4
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni)
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
KupaaBon 3
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
Otonano Omochiya Vol.6 - Ch.4-5
(C66) [INFINITY-FORCE (Mercy Rabbit)] VS∞ VURSUS INFINITY (Capcom vs. SNK)