Sora, a homebody high school girl, was supposed to be resting in the infirmary when she woke up to find a handsome, three-star-grade boy next to her. And then, out of nowhere, he asked her to sleep with him...???? Ayu Watanabe's super-intimate love story begins with a bang!

(Source: Betsufure, translated)

Note: The chapter count includes 4 extra chapters.