In the small town of Nishioka in the mountains of Japan, Rin Kawata grew up there with his family. Currently, he's 17 years old- a second year in high school. Rin has a good face, always tenderly smiling, but it seems like his true personality is quite sadistic. He uses people for either entertainment or his own benefit. Since childhood, he's had a friend named Aoi Konda. Some in their small school spectate they are dating, since they're publicly close.