Momose Rin

"You will receive sex training until you become gay." This prison guard might be sadistic, but like it or not he'll make you cum with his superior techniques! Natsuki, a host-club worker and womanizer, has somehow traveled into the future… a future where heterosexuality has been outlawed due to overpopulation! Natsuki is immediately arrested and locked up in the "Penile Penitentiary", where straight men are turned gay. There are physical examinations, as well as submission training, and anal development… Under the sadistic tutelage of the sexy guard, Natsuki finds himself beginning to enjoy the touch of another man… What will happen to him?!

"I want you to tattoo over all of the places he showed his love for me." To commemorate lost love, Runa gets tattoos over his boyfriend's hickeys. Ryuu, the tattoo artist, becomes smitten with Runa's sexiness and asks for sex instead of payment…

As the result of a broken heart, Tsubasa decides to work at an all-male brothel. Even though he hasn't had sex with the man he loves, he'll be fucked by men he doesn't know…!