Ken Amafuji has lived a dark life. He's had to fend for himself as long as he can remember, selling himself to strange men just to pay the rent. The one ray of light in his life has always been his childhood friend, Ritsurou Yoshinari. Bright, upbeat, Ritsurou has always been everything that Ken is not, and Ken loves him like he loves none other. Ritsurou has a girlfriend, Moeko, and studies hard, hoping to live a simple, conventional life. But then Ken learns that Ritsurou has been unable to bring himself to consummate his relationship with Moeko, and he feels a spark of hope. Ken seduces Moeko himself to get closer to Ritsurou and starts the three of them down a path of no return.