Bishoujo Doujinshi Battle 7
[R-Koga] Pink no Hakumaku | Pink Thin Film
[CELTRANCE (Kogaku Kazuya)] Mama Hame Sex (Tsuya) [Chinese] [魔劍个人汉化] [Digital]
(Reitaisai 11) [ROCK CLIME (Danbo)] Kaso Koga Tabe Houdai (Touhou Project)
(C78) [Aichiko (ubizo)] Nekogami Akira-sama to Issho. (Lucky Star)
(C66) [Tenny Le Tai (R-Koga)] P-ZONE
Comic Megastore 2006-10
[CELTRANCE (Kogaku Kazuya)] Mama Hame Sex (Tsuya) no San (Mae)
(C78) [abgrund (udk)] Ore no Yome.doc
Sakuya to Kogane ga Muchimuchi Mizugi de Ecchi na Gohoushi Shichaimasu!
COMIC Momohime 2006-02
COMIC Megastore Alpha 2013-12
COMIC Megastore 2005-02
Hamedori Koga-tan
(SC65) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] My Beautiful Dark Deranged Fantasy! (Amagi Brilliant Park) [Chinese] [光年漢化組]
Comic Masyo 2004-11
(C99) [CELTRANCE (Kogaku Kazuya)] Yume Ochi Mazoku | Dream subjugating demon (Machikado Mazoku) [English]
Comic Megastore 2004-06
[Kakogawa Tarou] DOLL HAZARD [Digital]
COMIC Momohime 2006-11
(C78) [CELTRANCE (Kogaku Kazuya)] Choudenji Spin (Toaru Kagaku no Railgun)
Akogare Kanojo no Risou to Genjitsu | My Crush: Expectation vs Reality
Surprise Meister KogaNue
[R-Koga] Tsukumimi
COMIC HOTMILK 2019-01
Kogasa no Aiaigasa
(C78) [Tsurikichi Doumei (Umedama Nabu, Kogawa Masayoshi, Uranoa)] Nogaremono Nan Demo-R (Various)
COMIC Megastore 2006-01
[USUMY] Nuresugi Nikubou Shidou ~Ochita Ginban no In Tenshi~
COMIC Masyo 2013-06
(Hanjuku Hero Life WEST) [Reisei Hormone (Soujiroh, Kikogaminata)] BURN DOWN (My Hero Academia)
[Kogaino] Eroseku!
COMIC Momohime 2003-03
COMIC Megastore 2011-10
COMIC Megastore 2010-02
Comic Megastore 2003-11
(C48) [TENNY-LE-TAI (Aru Koga)] Aa!! Megami-sama ni Taiho Sarechauzo!! (Ah! Megami-sama, You're Under Arrest)
COMIC HOTMILK 2017-12 [Digital]
COMIC Momohime 2006-02
HAPPY! HAPPY?
[Anthology] Oshiru Ko Kan 1
COMIC HimeDorobou 2009-05 (Corrected)
[Tsurikichi Doumei (Kogawa Masayoshi)] Heroman (Senjou no Ecchi EROMAN) (HEROMAN) [Digital]
COMIC MASYO 2013-02
(Renai Jiyuugata! Natsu Honban) [Uchuu (Hikoushi)] Rei-chan, Kirei da yo! (Free!)
COMIC Masyo 2015-01
Comic Megastore 2003-12
[Enueeru] 精液逆流JK
Suwarete Nomarete Kogasa-chan
which
[koga te kko]tosiue no kare ha ama ku ida ku。~XX saisa no yara sii zyouzi~01-03|被年上男友溺愛怀抱~xx年齡差的羞澀情事~01-03[中文] [橄榄汉化组]
COMIC Masyo 2014-02
[R-Koga] Mechashiko Hiyakekko | 曬痕女孩來做愛吧 [Chinese]
[STUDIO SHARAKU (Sharaku Seiya)] Yoiko no Ratai Book 2 (H2) [2000-03-03]
(C87) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Fallen Angela (Rakuen Tsuihou -Expelled from Paradise-)
[Hakidamenokoganemushi]Magical Girl Archives [English][_ragdoll]
COMIC Megastore 2006-05
(C62) [Kakogawa-ya (Kakogawa Tarou)] Ore to Foreskin Bri ~Me and Foreskin~ (Guilty Gear)
COMIC Megastore 2009-06
COMIC Megastore Alpha 2013-09
Odoroki no Kogasa dezumu
COMIC Megastore 2012-05
[Koganei Musashi] Manga Ero Monogatari (Card Captor Sakura, Cyber Team in Akihabara, Fun Fun Pharmacy, Battle Athletes, Nadesico, Love Hina, Ojamajo Doremi, Utena)
Comic Megastore 2001-06
[Ninniku(Kari)] Chinko Raiko-san x Futsuu Kogasa no Dengeki Manga (Touhou Project)
Bunny Senpai Room
Amari ni mo Seichishiki ni Kaku Kogasa-chan to no Muchikkusu Bon
ENVY of ZERO
Kai Kan Shin Shoku
COMIC Momohime 2005-06