I failed my end-of-term exams, so no summer vacation for me. The classroom is stuffy with heat, boring cram school, and the otaku next to me, some guy named Kishinaga, is too serious and boring. Behind me, the gal Se-na is complaining. My youth was supposed to be slowly fading away... Everything changed from the moment that dull girl Kishinaga picked up Yari-man Sena's dirty jokes. We became one through dirty jokes, literally. The gal and the otaku, obscene talk and debauchery, our sexual spring blooming during summer break. It's all because of summer...
