Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kanyuu Saretara… The Animation Episode 1

Wataru is a young man who moves into an apartment next to Tomoka and Fumie Fusono, two voluptuous sisters who used to know him when he was a shy child. Now Wataru is all grown up, and the Fusono sisters are ready to take full advantage of that fact.

Reiji was a guitarist of a tragically dissolved band – Bloody Roses. Years later, he meets a singer resembling the vocalist of his old band. This encounter prompts him to form a new band, and so the search for a drummer and a bass player begins.