Koga Ryouhei Prelfillust

Comic Megastore 2007-12

COMIC Masyo 2016-09

COMIC Masyo 2015-08 [Digital]

COMIC Mugen Tensei 2017-01 [Digital]

(brilliant days3) [Snobbism (Chiitake)] Koi no Chaban Gekijou (Ensemble Stars!)

COMIC XO 2006-08 Vol. 3

(Reitaisai 11) [ROCK CLIME (Danbo)] Kaso Koga Tabe Houdai (Touhou Project)

[Anthology] Kemono For Essential

(brilliant days 4) [Inukare (Inuyashiki)] Pillow Talk mo Oko Nomi de (Ensemble Stars!)

(Yumeiro ★ Symphony) [Mayonaka (Ohiru)] Zatsunen Entertainment (Ensemble Stars!)

BUSTER COMIC 2014-11

(C49) [Ganso Sonoda Ya (Various)] Chousen Ame Ver.08

[Anthology] Hinakan 3

(C78) [Tsurikichi Doumei (Umedama Nabu, Kogawa Masayoshi, Uranoa)] Nogaremono Nan Demo-R (Various)

COMIC HOTMILK 2016-10 [Digital]

Hinakan Hi! Vol. 02

(C84) [Konnyaku Nabe (magifuro Konnyaku)] Koga Ryona Vol. 2 (Touhou Project)

[R-Koga] Kitsu Kitsu

COMIC Masyo 2012-12

[Konnyaku Nabe (magifuro Konnyaku)] Odoroki no Kogasa dezumu (Touhou Project) [English] [CGrascal] [Digital]

[Mikezoutei] Kyuuketsuki ni Kanzen Haiboku Shita Vanpire Hunter Oyako ga Musuko no Mae de Okasare Kyuuketsuki-ka Shite Shimau Haha no Hanashi

[Anthology] Hinakan 5

(C62) [Kakogawa-ya (Kakogawa Tarou)] Ore to Foreskin Buri ~Me and Foreskin~ (Guilty Gear XX)

COMIC XO 2009-03 Vol. 34

COMIC HOTMILK 2016-08 [Digital]

(C87) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Fallen Angela (Rakuen Tsuihou -Expelled from Paradise-)

(C87) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Brilliant Christmas (Amagi Brilliant Park) [Chinese] [脸肿汉化组]

Omoide Level Genkai Toppa Shita Tsukioka Kogane wa Yonayona P to no Ecchi o Mousou Shite Onanie Shite Shimau | 思念之情突破極限的月岡戀鐘她每晚都在用和P做愛的妄想拼命自慰著

COMIC Megastore Alpha 2015-07

COMIC Masyo 2014-10

[Atelier Hachifukuan] Superheroine Yuukai Ryoujoku VII

COMIC Megastore 2007-08

(C94) [Kansai Gyogyou Kyoudou Kumiai (Marushin)] Idol Nara Seikoushou No Kokoroe Kurai Arubeki Dato Omouyo Kogane Chan (THE iDOLM@STER: Shiny Colors)

Comic Megastore 2004-05

[Komekouji] Chikadou Bukkake Jigoku

[Kouka Ryouhei (Yanagi Kyouei)] El-tentacle Birth Lady’s Mk.B PHASE-3 "Kou" [Digital]

(Yumeiro ★ Symphony 3) [oyoyo (Yui)] Kimi ni Deawanakereba Mou Sukoshi Matomo datta (Ensemble Stars!)

[Hakidamenokoganemushi]Magical Girl Archives [English][_ragdoll]

COMIC Megastore 2008-10

COMIC Momohime 2006-02

Comic Megastore 2003-11

COMIC Masyo 2014-12

[光華猟兵] Prelfillust Extra.1 Joint+ex

Hinakan Hi! Vol. 04

(COMIC1☆11) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Eromanga Sensei to Yamada Elf Sensei no Eromanga (Eromanga Sensei) [Chinese] [oo君個人漢化]

Comic Megastore 2004-02

COMIC Megastore 2010-12

(C94) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] ETOILE (Shoujo Kageki Revue Starlight) [Chinese] [残碑日月个人汉化]

(C78) [Aichiko (ubizo)] Nekogami Akira-sama to Issho. (Lucky Star)

(C89) [Konnyaku nabe (Various)] R-18G Koga Ryona Goudoushi 3 Koga Ryonabe Shime (Touhou Project)

Kogane ni Chinchin ga Haete Antique ni Nuki Makurareru Eromanga

(SC60) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] NO WORK, NO LIFE? (Hataraku Maou-sama!)

COMIC Masyo 2017-12 [Digital]

(C76) [Andore★JAPAN] Ero Nika Gakushuu Chou (Various)

COMIC Momohime 2003-03

[CELTRANCE (Kogaku Kazuya)] Mama Hame Sex (Tsuya) [Digital]

(C53) [STUDIO SHARAKU (Sharaku Seiya)] Yoiko no Ratai Book 4 Kai (H2)

[Hakidame no Koganemushi (Koganemushi)] Nikutai Henka Shoujo Yawa ~MaGal Kissa no Nanokakan~ | 辣妹咖啡七日谈 [Chinese] [K记翻译] [Digital] [Incomplete]

COMIC HOTMILK 2017-06 [Digital]

Comic Megastore 2004-09

[CELTRANCE (Kogaku Kazuya)] Mama Hame Sex (Tsuya) [Chinese] [魔劍个人汉化] [Digital]

[Butaro] Tenshi to Akuma | Angel and Demon [English] [neentenderk + Jedic]

COMIC Megastore 2007-11

COMIC Momohime 2006-03 Vol. 65

(C63) [Tsurikichi Doumei (Kogawa Masayoshi)] Miu-san! Kumite Onegai Shimassu! | Miu-san Kumite! Please! (Non Dema-R Tankahen) (History's Strongest Disciple Kenichi) [English] [Illuminati-Manga]

[R-Koga] Mechashiko Hiyakekko | 曬痕女孩來做愛吧 [Chinese]

[Qdou Kei] Kaasan no Ijou na Aijou - Mother's Strange Love | 母親們的異常的愛情 [Chinese]

[R-Koga] Koakuma Acme

(C78) [Tsurikichi Doumei (Kogawa Masayoshi)] EROMAN (HEROMAN) [English] [_ragdoll] [Incomplete]

[R-Koga] Nii-chan Senyou [Digital]

in itinere

Pillow Talk mo Oko Nomi de

(C88) [STUDIO Hamachigumi (Mizuki Hitoshi)] Ganbare ❤ Kogasa-san (Touhou Project) [Chinese] [oo君個人漢化]

[Butaro] Tenshi to Akuma

COMIC HOTMILK 2017-06 [Digital]

COMIC Masyo 2015-10

Sakuya to Kogane ga Muchimuchi Mizugi de Ecchi na Gohoushi Shichaimasu!

COMIC Masyo 2016-07

(C70) [Tenny Le Tai (Aru Koga)] Chiputto Sister (Chokotto Sister)

よいこのらたいぶっく2

Tsukioka Kogane no Dosukebe Lesson

COMIC Megastore 2011-08

Surprise Meister KogaNue

Comic Megastore 2004-06

COMIC Momohime 2005-06

(C83) [MEGA-MIX (Nekoga Yoshiki)] Fairy Rondo (Sword Art Online)

[Kogaino] Eroseku!

(C95) [Mix Fry (Takurou)] Bunny Koga-tan (THE iDOLM@STER: Shiny Colors) [English] [KCzz15]

[Anthology] Digital Puni Pedo! Vol. 09

(C89) [Sugusoko (Yuma Ryouhei)] Made in Nanathi Doshigatai Hitobito (Made in abyss) [Chinese] [兔屋汉化组]

(C87) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Brilliant Christmas (Amagi Brilliant Park)

COMIC Megastore 2010-05

[CELTRANCE (Kogaku Kazuya)] Momoiro Takarabako (Machikado Mazoku) [English] [Tamamo | GDS] [Digital]

(SC61) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] HARUNA BLITZ TACTICS (Kantai Collection -KanColle-) [Chinese] [无毒汉化组]

(CR25) [Tenny Le Tai, Kemigawa Doubutsu Byouin (R-Koga, Efink, Kona)] Nadenade Shite Kudasai (To Heart)

[Ninniku(Kari)] Chinko Koishi x Futsuu Kogasa no Request Manga (Touhou Project)

(C84) [Konnyaku Nabe (magifuro Konnyaku)] Koga Ryona Vol. 3 (Touhou Project) [Chinese] [yuanzhongwo渣汉化]

COMIC Megastore Alpha 2014-11

[Hakidame no Koganemushi (Koganemushi)] Zetsuen Unaji (Kantai Collection -KanColle-) [Digital]

(C77) [MEGA-MIX (Nekoga Kouki)] To Aru Yumeutsutsu no Railgun (Toaru Kagaku no Railgun)

(C37) [MATSUBAYA Corporation (Various] Route RANMA (Ranma 1/2)

[Tsurikichi-Doumei (Kogawa Masayoshi)] Oudou ~Jumping High Kick no Shou~ (Various)

(SC65) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] My Beautiful Dark Deranged Fantasy! (Amagi Brilliant Park) [Chinese] [脸肿汉化组]

COMIC Megastore Alpha 2015-11

COMIC Masyo 2010-08

(C73) [Kakogawa-ya (Kakogawa Tarou)] CHINA-R (Mobile Suit Gundam 00)

(C83) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] SISTER FAERIE (Sword Art Online)

(C61) [Tenny Le Tai (R-Koga, EFINK)] Neko Maid A GO GO!

[Anthology] Gochuumon wa Okimari Desuka

(C57) [Kamogawaya (Kamogawa Tanuki, Kakogawa Tarou)] "Daishizen no Oshioki Desu." 3 (Samurai Spirits)

[Anthology] Hinakan 4

(Reitaisai 15) [Tora Koubou (Ken Tatuki)] Kogasa Sukebe Shiyouya! (Touhou Project)

COMIC HOTMILK 2017-04 [Digital]

(C81) [TAIL UP! (Arima Yutaka)] KogaCyclone (Touhou Project)