Kabe ni Umekomareta Shoujo de Seiyoku Shori

Volume 1 1. Nikuheki Koushuu Benjou (肉壁公衆便所, Human Toilet) [somejima] 4. Love♥Hole [Marui Maru] Volume 2 1. Seidorei no Tsukurikata (性奴隷の作り方, How to Make a Sex Slave) [Shomu]