Kou Yamori appears to be a run of the mill center school understudy on a superficial level. Moderately great at review and pleasant with his schoolmates, he invests some parcel of energy into keeping up with this veneer. At some point, in any case, he chooses to quit imagining and stops school, creating sleep deprivation because of having no daytime source for his energy. While going for strolls alone around evening time, he feels improved, however he knows that his powerlessness to rest ought to be viewed as a difficult issue. On one such walk, Kou meets Nazuna Nanakusa, an unusual young lady who analyze the reason for his restlessness: in spite of making changes in his day to day existence, he is as yet keeping himself away from encountering genuine opportunity. She says that he will not have the option to rest except if he is happy with how he spends his waking hours. At the point when apparently she has settled his ongoing concerns, Nazuna welcomes him back to her loft to share her futon. Sooner or later, ignorant that he is just faking obviousness, she hangs over him — and nibbles his neck!