[Shomu] Josou Kouhai-kun x Otokogirai-chan | Crossdressed Kouhai-kun x Man-Hater -chan (COMIC Shingeki 2016-06) [English] [N04H]
[Intoku.info (Endou Hiroto)] Chiramise Jouzu na Kouhai wa Bokki saseta Sekinin o Toritai! [Digital]
B.O.W. to Hito tono Kouhai Jikken Houkokusho | B.O.W And Human Crossbreeding Experiment Report
[Ue ni Aru Mikan (Reitou Mikan, Amuai)] Shisshoku Shita Ore ga Seitai Tenkan Sochi de Kouhai no Jijo ni!?
[Itou Eight] Kouhai Missed Memories | Kouhai's Missed Memories (COMIC Anthurium 020 2014-12) [English] [TripleSevenScans]
Doutei no Ore ga Inma to Kouhai o Haramasechau!? | 明明是童贞却要让淫魔和后辈都怀上我的孩子!? 1
【Mokugeki】Rikujoubu Kouhai ga Noshon: Hanashikaketara Tsuyoki na Taiou o Sareta
Otaku no Boku to Iikanjidatta Kuro Gal Kouhai o Netorareru Mini | A mini about black gyaru who has good feeling with the otaku me being cucked
Houkago Kouhai Note | 放課後交配筆記本
Maid to Kouhai Dochira ga Okonomi?
(COMIC1☆12) [Junpuumanpandou (Hida Tatsuo)] Uchi no Megane no Niau Tayoreru Kouhai ga Totemo Kawaii! (Fate/Grand Order)
Enjo Kouhai 1-10
(COMIC1☆14) [Moe Hime Rengou (xin, obiwan)] FGO Carnival 19 - Kyuukyoku no C.C.C. Namaiki Kouhai-chan to Nama Lesson (Fate/Grand Order)
Rune Midgarts no Kouhai Jikken 2 ~Lord Knight-Hen~
[Wakamatsu] Sotsugyou no Hi made Mainichi Bus-tei de Kouhai Joshi to Sex suru Hanashi [Chinese] [零星汉化组]
(SC2018 Autumn) [ELHEART'S (Ibuki Pon)] Kawaii Kouhai ni Itazura Shite Miru Hon (Fate/Grand Order)
Seiteki Kachikan Gyakuten Series "Tobiori Jisatsu Shisou na Kouhai o Ecchi de Yamesaseru Hanashi"
Futaba Chiru
[Hanpera] Taifuu + Sake + Kouhai=♥♥♥ (Inshokukei Oneesan ga Shitaikoto) [Chinese] [黑条汉化]
Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai―3wa
Kouhai ni kokuhaku shitara ~after~
(C99) [Haitokukan] Touhou Suikan 7 Kouhai ni Itazura sarechatta Himekaidou Hatate (Touhou Project)
Kyodai Mushi no Kouhai-jou
(C94) [Banana Koubou (Ao Banana)] Zenra Roshutsu Haikai Onanie ni Dohamari Shita Hentai Kouhai Mash Kyrielight (Fate/Grand Order) [English] [CGrascal]
[Athome Shuka (Takunomi)] Enjo Kouhai 5 [Digital]
[Shiba 4-choume] Kouhai wa Mita!
Shortcut de Megane no Niau Kawaii Beit no Kouhai no Heya ni Agarikonde Muriyari Hamedori shitatta
Netorare Kouhai Kanojo
(C88) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon2
[Dibi] Otokonoko ga Kouhai ni Ijimenukareru Ero Manga[Chinese] [雷电将军汉化]
[Pistachio] Futanari Senpai x Rugby-bu Kouhai-kun
Astolfo Cos no Kouhai ga Satsueikaigo ni Mousou Onanie Suru Hanashi
[Aimaitei (Aimaitei Umami)] Kasshoku Otokonoko DeliHeal no Erohon ~Yattekita Shimakaze-kun wa Daigaku no Charai Kouhai de――?! Hen (Kantai Collection -KanColle-) [Digital]
(SPARK9) [Dolce Einsatz (Tomoe Kiko)] Kouhai Therapy (Free!)
Dosukebe Kouhai no Nenmaku Houshi Ryokan
Kouhai Sensou Zenpen
Kouhai Otokonoko to Sugosu Amai Hitotoki
Natsu no Hi, Kouhai to, Bus-tei de. | On a Summer Day, with My Kouhai, at the Bus Stop.
Senpai ni Jibun ga Mesu de Aru Koto o Wakarasareru Kouhai Zoku
(C95) [Akapenguin (Asahina Hikage)] Tawawa na Kouhai-chan 3 (Getsuyoubi no Tawawa)
Shinjin Kouhai Kiriko-san | 신입사원 키리코
(Reitaisai 10) [Maruiro Kikou (846gou)] OL Megane Yuugi to Kouhai ga Zukkon Bakkon Suru Hon (Touhou Project)
yotta daigaku no kouhai o turekonde warui koto o suru hanashi
Chaldea Shiki Seiyoku Shori System ~Kouhai to Seijo-tachi no Baai~
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 2-wa [Digital]
Bitch mo Sokuochi!? Doutei Chinpo wa Zetsurin Chinpo! Futago no Kouhai to Yarimakuri! Hamemakuri!!
Rune Midgarts no Kouhai Jikken ~Archbishop Hen~