Cos Shite Shiyo! Kouhai Hen
Kawaii Kouhai ni Itazura Shite Miru Hon
Netorarete Shunkashuutou ~Amae Jouzu na Kawaii Kouhai to no 1-nenkan~
Lust Order ~Beast-kei Marshmallow Kouhai~
C94 Omakebon Uzai Kouhai wa Pakoritai!
Bitch mo Sokuochi!? Doutei Chinpo wa Zetsurin Chinpo! Futago no Kouhai to Yarimakuri! Hamemakuri!!
Kojin Satsuei 19-sai Kareshi Mochi Kouhai-kei Kyonyuu Layer
Gasshukujo no Senpai Manager-tachi to -Kyuubyoudai Chinpo no Kouhai-
FGO Carnival 19 - Kyuukyoku no C.C.C. Namaiki Kouhai-chan to Nama Lesson
Zenra Roshutsu Haikai Onanie ni Dohamari Shita Hentai Kouhai Mash Kyrielight
Shinjin Kouhai Kiriko-san
Kouhai Missed Memories
Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 6-wa
Maid to Kouhai Dochira ga Okonomi?
Kouhai Tanetsuke Onsen - Nishimura Yuki-chan ni Marking
"Kojin Satsuei" Danshiryou Doushitsu no Doutei Houkei Kouhai o Kyousei Onanie Kyousei Shasei Satsuei Kirokushuu
Sekai de Ichiban Bonyuu ga Deru Rugby-bu Captain desu ga, Kouhai to 69 Suru no wa Hen deshou ka?
Kouhai no Amai Ryouhou
Rune Midgarts no Kouhai Jikken ~Archbishop Hen~
Kanmusu Chakunin Inazuma Kyousei Ishu Kouhai
Hentai Senpai to Yajuu Kouhai
Kouhai-chan Ki o Tsukete!
Enjo Kouhai Swimming Costume
Kouhai Channel
Hiken-tai E no Kouhai Jikken
Kouhai no Amai Ryouhou | My Junior’s Lovey-Dovey Treatment
Kurage Musume-chan no Amaama Aigan Kouhai Nikki
Ganbaru Kouhai | 힘내라 후배
Rune Midgarts no Kouhai Jikken 2 ～Lord Knight-Hen～
Lunch Time no Kouhai
Senpai-kun to Kouhai-chan
Kouhai Futari ni Chinpo o Omocha ni Sareru Doutei-kun
Koukoku no Kouhai Kono Issen ni Ari, Kakuin Issou Bokki Doryoku Seyo
Shouwaru na Kouhai ni Gyakushuu Sex! Ijimekko wa Boku no Iinari Seishori Gakari!
Daisuki na Kouhai no Do-S na Hikaru-chan ni Mechakucha Seieki Shiboritorareru Hanashi.
Bukatsu no kouhai wa otoko no musume
Futanari Senpai x Rugby-bu Kouhai-kun
Muhyoujou Kouhai-chan to Oji-san
Joushiki Henkan Switch: Namaiki na Kouhai
Ganbaru Kouhai
Pote Kouhai
Watashi no Hebionna ga Dosukebe no Kouhai ni Choukyou Sarete Ooyake no Ba de Dappi Suru Hon
Kouhai Maid ga Osewa o Shite Kureru You desu
Kouhai Servant ga Dosukebe na Ken
Watashi no Hebionna ga Dosukebe na Kouhai ni Choukyou Sarete Ooyake no Ba de Dappi Suru Hon
Chaldea Shiki Seiyoku Shori System ~Kouhai to Seijo-tachi no Baai~
