Yabai yo!! Bakunyuu Yankee Musume Ricchan!
(Reitaisai 10) [Maruiro Kikou (846gou)] OL Megane Yuugi to Kouhai ga Zukkon Bakkon Suru Hon (Touhou Project)
Houkago no Kyoushitsu de Kouhai to Ge
(C75) [Otomekibun (Sansyoku Amido.)] Gakkou de Seishun! -Kouhai mo Issho-
[Akitarainu (Chakkaman)] Touhou Chara ga Doubutsu to no Akachan o Umu tame ni Kouhai Saserareru Juukan Hon (Touhou Project) [English] [ARMAE] [Digital]
(C90) [Shimanto Seiryuu (Shimanto Youta)] Kouhai-chan Ki o Tsukete! [English] [BSN]
[Masamune Kokichi (Matsu Takeshi)] Dekkai Kouhai Chicchai Senpai | 大后辈小前辈 [Chinese] [黑夜汉化组] [Digital]
Bokuyaba Ichikawa x Yamada
Bakunyuu de Kouhai no JK to Paizuri Suru dake
Yabai!! Hadaka de Densya ni Notchatta - Hotondo Morodashi Body Painting
(C85) [Sekai Kakumei Club (Ozawa Reido)] Koukoku no Kouhai Kono Issen ni Ari, Kakuin Issou Bokki Doryoku Seyo (Kantai Collection -KanColle-)
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 3-wa [Digital]
(C93) [LOFLAT (Prime)] Maid to Kouhai Dochira ga Okonomi? (Fate/Grand Order)
Yabai!! Hadaka de Densha ni Notchatta
[Eryngitoro Salmon] Kairaku-mamire! `Uso saimin' shitara honki ni shi chatta kurasuno-chou ga gachidosukebe de yabai
Fuuki Iinchou no Saimin Seishori Katsudou Kiroku
[Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 3 [English] [Doujins.com] [Digital]
kouhai rapes senpai [himawari no tane] (short version)
(C89) [Shiawase Kyouwakoku (Shiawase no Katachi)] Shiawase no Katachi no Guruguru Netachou 83R - Kouhai Jikken Hito x Saru Ninshin Shussan Satsuei [Chinese] [屏幕髒了漢化]
Ore no Kouhai to Imouto ga Neoki ni Osotte Kuru.
Kouhai no Shitsukekata Nadametari Odoshitari ○○ shitari - | 对后辈的教育方法:可以亲切可以严厉也可以OO——
NONOYABA! ~Ore no Biyaku no Kounou ga Yabai~
(C93) [kulmov_ (Kurowa)] Kouhai Channel (Fate/Grand Order) [English] [NHNL]
Boku wa Kouhai no Onahole
[Triangle! (Maple, Yami Satori)] Kurage Musume-chan no Amaama Aigan Kouhai Nikki [Digital]
Enjo Kouhai In The Closet
[Egoistic Honey, Allegro Mistic, Kuroneko-kan (Hadumi Rio, Takano Yuki, Muririn)] Kouhai ni Sarechau Hon [Chinese] [佐倉七海个人翻訳] [2018-08-26]