[Hatomame(Ago)] Bitch Ikka no Imouto ga Futanari Kouhai no Fudeoroshi Shitara Shinikaketa Hanashi.
(C93) [Athome Shuka (Takunomi)] Enjo Kouhai 4 [Chinese] [嗶咔嗶咔漢化組]
(SPARK9) [Dolce Einsatz (Tomoe Kiko)] Kouhai Therapy (Free!)
Kouhai-chan ni Eroi Koto Sareru Hon 3
Masaka Ano Kawaii Kouhai ni Nekomi o Osowareteita nante
Kouhai no Tangan-chan #2
[ぴすたちお] Futanari Senpai x Rugby-bu Kouhai-kun
(C93) [Labomagi! (Takeda Aranobu)] Netorare Kouhai Kanojo ~Shiranu Ma ni Ubaware Okasareta Shitai~
Kouhai to Onee-san ni Shinpai Kakecha Dame!
Watashi dake no Kouhai
Ecchi na Kouhai-chan
Gudako to Dosukebe Kouhai no Futanari Jijou
Enjo Kouhai Swimming Costume | 원조교배 Swimming Costume
Ki ni Naru Kouhai no Karada
Machikirenai Kouhai Kanojo Tsujinaka-Chan
Dekkai Kouhai to Chicchai Senpai
Boku no Mash no Kouhai Ryoku
Ishu Kouhaiguusha -Mushi to Kemono to Hachuurui-
Enjo Kouhai In The Closet
(C92) [Kanden Shoujo Chuuihou (Mafuyu)] Hentai Senpai to Yajuu Kouhai (Fate/Grand Order) [English] [constantly]
[Itou Eight] Kouhai Missed Memories | Kouhai's Missed Memories (COMIC Anthurium 020 2014-12) [English] [TripleSevenScans]
[yogurt (bifidus)] Kouhai Tanetsuke Onsen - Nishimura Yuki-chan ni Marking [Chinese] [Digital]
Otaku no Boku to Iikanjidatta Kuro Gyaru Kouhai wo Netorareru Mini
Senpai to Kouhai no Nayami
Zenra Roshutsu Haikai Onanie ni Dohamari Shita Hentai Kouhai Mash Kyrielight
Sotsugyou no Hi made Mainichi Bus-tei de Kouhai Joshi to Sex suru Hanashi
Touhou Chara ga Doubutsu to no Akachan o Umu tame ni Kouhai Saserareru Juukan Hon
Kawaii Kouhai ga Shiboritoru no o Yamete Kurenain desu.
[Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 3 [English] [Doujins.com] [Digital]
Josou saserarete Futanari Kouhai Servant ni Onnanoko ni Sarechau Hon
Kanojo to Boku no Kouhai no Hanashi. ch.1-4
Enjo Kouhai Interlude
Kouhai's Missed Memories
(C90) [High Tech Pen Case (Tam-U)] Kouhai Bon (Natsu) [Chinese] [绅士仓库汉化]
Enjo Kouhai 10
(C92) [Makuu Gundan (Shinozuka Atsuto)] Ganbaru Kouhai | Do Your Best, Kouhai (Fate/Grand Order) [English] [Saint Quartz Scans]
Senpai Kouhai Otoko Onna Jijou - Senpai Kouhai a Man and Woman's Circunstances
Natsu no hi, kouhaito, basutei de.
(C93) [Yuzuya (Yuzuha)] Kouhai Maid ga Osewa o Shite Kureru You desu (Fate/Grand Order)
Bitch mo Sokuochi!? Doutei Chinpo wa Zetsurin Chinpo! Futago no Kouhai to Yarimakuri! Hamemakuri!!
(C79) [inspi. (Izumi Rin)] Ore no Kouhai ga konna ni kawaii wake ga nai (Ore no Imōto ga Konna ni Kawaii Wake ga Nai)
(C93) [Tuzi Laoda (Henrybird9)] Chaldea Shiki Seiyoku Shori System ~Kouhai to Seijo-tachi no Baai~ (Fate/Grand Order)
[DPg] Senpai ga Uchikomu Kouhai no Hanashi (Senpai ga Uzai Kouhai no Hanashi)
Fuchou to Kouhai no Oshasei Jigoku
Beit Saki no Charai Kouhai ni Kanojo o Netorareta Hanashi
Saenai Heroine Series Vol. 6 Saenai Kouhai Shoujo no Sodachikata
Saitei Senpai to Demi Kouhai-chan
Ishukouhai Kiroku
(C93) [Killcy] Kouhai Servant ga Dosukebe na Ken (Fate/Grand Order)
Astolfo Cos no Kouhai ga Satsueikaigo ni Mousou Onanie Suru Hanashi
(C86) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon
(C86) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon [English] [Crystalium]