A teenage girl, Mikoto Shirakawa, hoping to enter the spring time of dating a boy and being in a lovey-dovey relationship gets a love confession from a schoolmate by the name Makoto Ootsuki. Without thinking much about it she accepts confession, in delight thinking she can now finally brag to her friends for having a boyfriend.

Little does she know that her boyfriend is no ordinary boyfriend with a twisted personality and that she has stepped into an unexpected situation.

(Source: MU)