When high school student Mikoto Shirakawa receives her first ever love confession, she's ecstatic! Makoto Ootsuki isn't exactly her type, but without thinking much about it, she accepts him, delighted that she can finally brag to her friends about having a boyfriend. But little does she know that her new boyfriend is no ordinary guy. It turns out that dating someone you don't know can be complicated, especially when they turn out to have a twisted personality! A perverted love story about paraphilia begins!