Kouhai Gatsu!
[Seikatsu Seshishou (tt)] Kouhai to! [Digital]
Otaku no Boku to Iikanjidatta Kuro Gyaru Kouhai wo Netorareru Mini
Netorare Kouhai Kanojo 2
Tomodachi no Youna Otaku Kouhai to Deisui Ecchi
[Studio Rakkyou (Takase Yuu, Ashi Shun)] Kanzen Nenshou 14 (Otogi Juushi Akazukin) [2007-04-15]
[AstroQube. (masha)] Kouhai no Tangan-chan [Chinese] [路过的骑士汉化组] [Digital]
[Tsubaki Jushiro] Jitsuane Soukan Root | Real Sister Incest Root Ch. 1-5 [English] [SaHa]
Shucchou ni doukou suru kaisha no kouhai o Yowasete warui koto o suru hanashi
(Reitaisai 10) [Maruiro Kikou (846gou)] OL Megane Yuugi to Kouhai ga Zukkon Bakkon Suru Hon (Touhou Project)
Kouhai Missed Memories
[Sennomori Maitake] Ayakashi Kouhai Kitan ~Onaka ni Shimi Wataru Atsui Tane~ 3 [Chinese] [瑞树汉化组] [Digital]
[Tsubaki Jushirou] Imouto Access - Sister Access
Kouhai Bon | 후배의 책
(C71) [Kuroyuki (Kakyouin Chiroru)] Gohoushi Club 6 (Otogi Juushi Akazukin)
[Studio Rakkyou (Takase Yuu, Ashisyun)] Kanzen Nenshou 14 (Otogi-Jushi Akazukin) [2007-04-15] [Chinese] [牛肝菌汉化]
Echi Echi Kouhai-chan!
[Shain No Shoujo] Otogikan (Otogi-Jushi Akazukin)
Kaizou Gakuen 「Kouhai」| Modification Academy 5 "Kouhai"
(Jui~cy~) [rabbit syndrome (rabbit)] ver.G (Otogi-Jushi Akazukin)
(C90) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 4
Lunch Time no Kouhai
[Tanaka-Ex] Anipyu! - Brother's Samen
(C92) [Akapenguin (Asahina Hikage)] Tawawa na Kouhai-chan (Getsuyoubi no Tawawa) [Chinese] [无毒汉化组]
(C94) [Hitsuji Kikaku (Muneshiro)] C94 Omakebon Uzai Kouhai wa Pakoritai! (Uzaki-chan wa Asobitai!) [Chinese] [夢之行蹤漢化組]
Its a Matter of Taste, I Love Trunks! 02 - Kobucha Omaso (Dokudenpa Jushintei)
Boku no Koto ga DaisukiDatta Kouhai ga Hoka no Otoko ni Haramasareru Hanashi
[Mountain Topper (Yamahata Rian)] Do-S Kouhai no Sundome Seme [English] [eddieleon7pc] [Digital]
Shachou no Aijin ni Sarete shimatta Kouhai no Hanashi
Lust Order ~Beast-kei Marshmallow Kouhai~
Hora Hora Senpai Koko ni Kawaii Kouhai-chan ga Imasu yo?
Rune Midgarts no Kouhai Jikken ~Archbishop Hen~
Gasshukujo no Senpai Manager-tachi to -Kyuubyoudai Chinpo no Kouhai-
[Furuya] Sherry-chan Kouhai jikken kiroku [SMDC] [English]
Enjo Kouhai 1-10
[Nakamuratakumi (kemukemuke)] Chiisana Senpai to Ookina Kouhai | Small Senpai and Big Kouhai [English] [CDG Scans] [Digital]
Dokuzetsu Kouhai DK wa Ore Senyou Kanojo
Goumon Onna Kyoushi - Shisshin Zekkyou Kahanshin! Kouhai Onna Kyoushi Akumu no Seikyouiku
Aotte Kuru Kouhai o Wakara Seru!
Kouhai Bon