(C85) [Sekai Kakumei Club (Ozawa Reido)] Koukoku no Kouhai Kono Issen ni Ari, Kakuin Issou Bokki Doryoku Seyo (Kantai Collection -KanColle-)
Ganbaru Kouhai
Kouhai no Tangan-chan #2
Kouhai Sensou Zenpen
Kouhai Danshi ni Netorare SEX
(C95) [Nekokaburi (Kuronomiki)] Lust Order ~Beast-kei Marshmallow Kouhai~ (Fate/Grand Order)
Shota Teitoku wa Senpai no Kouhai no Mono yo
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 5-wa [Digital]
Boku no Tanetsuke Gakkou Seikatsu 2 ~Tosho Iin no Kouhai Hen~
Chaldea Shiki Seiyoku Shori System ~Kouhai to Seijo-tachi no Baai~
Josou saserarete Futanari Kouhai Servant ni Onnanoko ni Sarechau Hon
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 3-wa [Digital]
Saenai Heroine Series Vol. 6 Saenai Kouhai Shoujo no Sodachikata
Maid to Kouhai Dochira ga Okonomi? | MAID vs KOUHAI: Which Do You Prefer?
(C94) [Athome Shuka (Takunomi)] Enjo Kouhai Different Clothes
Shouganai naa Kono Hentai Uzai Kouhai
[Yanyo] Love for you!! (COMIC Kairakuten 2017-07) [Chinese] [Digital]
Enjo Kouhai 10
Otaku no Boku to Iikanjidatta Kuro Gyaru Kouhai wo Netorareru Mini
Houkago no Kouhai
[Anthology] Naedoko ni Sareta Shoujo-tachi no Ishukan Kouhai Kiroku Vol.1 [Digital]
Ganbaru Kouhai | Do Your Best, Kouhai
(C93) [Kamepotel (Iduki Zirou)] Ane: Shotareators (Re:CREATORS) [English]
(C90) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 4 [English] [Noraneko]
Sample H0539 Kouhai Report
(C94) [Hitsuji Kikaku (Muneshiro)] C94 Omakebon Uzai Kouhai wa Pakoritai! (Uzaki-chan wa Asobitai!) [Chinese] [夢之行蹤漢化組]
Ano Yoru no Kouhai ~Kanotorare~
(SC2017 Summer) [Yadapot (Yadapoteto)] Mash wa Senpai ni wa Sakaraemasen...! (Fate/Grand Order)
Kouhai-kun wa Kanari Choroi
[Athome Shuka (Takunomi)] Enjo Kouhai IF [Digital]