Comic BonBobon! 2000-08
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
Kimi no Tame ni Dekiru Koto
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-hajimeru (My-HiME) [English] [SaHa]
Action Pizazz DX 2008-11
Let's Study!
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)
COMIC Anthurium 020 2014-12
Yume Ressha ni Youkoso | 欢迎来到梦之电车
[Kugami Angning] Hatsumono no Imouto o Jikkei ga Okasu!
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
Ovacas Style 2008
(Tougetsu-sai) [OVACAS (Hirokawa Kouichirou)] IYASI-K (Pani Poni)
Pai ☆ Mate 4
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
[Tenzen Miyabi] Kanbotsuyama Biwak (BUSTER COMIC 2015-03) [English] [desudesu]
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
(C70) [Kawaraya Honpo (Kawaraya A-ta)] Hana - Maki no Juuni - Hana no Yaiba (Witchblade) [English] [KageSennin]
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!)
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
(C95) [Kansyouyou Marmotte (Mr.Lostman)] DESERT BEAUTY NAKED (Fate/Grand Order)
Nijiiro Sensibility Ch. 1
Magical Girl x Kamen Rider, Sayaka & Fourze - Great War of Mitakihara MAGIMIX
(C88) [Namacyoko (Chokoboll Mukakoi.)] Netorare Sakunyuukan Takao (Kantai Collection -KanColle-)
(C48) [Jiyuugaoka Shoutengai (Hiraki Naori)] Humming Bird Last Wing (Idol Defense Force Hummingbird)
(C92) [CurryBergDish (Mikage)] Nightingale-san no Kareinaru Chiryou (Fate/Grand Order)
After School XX Time
Shijou Saikyou no Deshi Ken'ichi Bishoujo Dorei Miu Kounai Choukyou Hen
Super Sakura Taisen F
[Nagi Web (Shiba)] Shirei Daibousou (Neon Genesis Evangelion) [Digital]
(C61) [OVACAS (Hirokawa Kouichirou)] S.F.3.D (Various)
(C62) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 4 Sokuon (Azumanga-Daioh)
Midorikawa Ijiri
Eromangaka Wa Mita!
[Miray Ozaki] Boy Meets Girl 2
[OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia Kaiteiban (Manabi Straight!)
Cow Girl's Breast Massage | El masaje de senos de la chica vaca
(SC56) [Ninokoya (Ninoko)] Mouretsu Kaizoku Seikatsu 2 (Mouretsu Pirates)
[GEN] Ecstase Senki Senryou [Chinese]
SHINODUKA
[Yanagawa Rio] Mama to Yobenakute | I Can't Call Her Mama (Kinjirareta Asobi) [English] [Decensored]
(C88) [Shijou Misaki (Satou Souji)] Highschool Seishun Hakusho H+H | Highschool of Spring White Paper H+H (Highschool DxD) [chinese][无毒汉化组]
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
[OVACAS] OVACAS SKETCH 2
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
(C91) [Shinshunshantonshou (Bukatsu)] Koiyoi Lamretta! (Granblue Fantasy)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]