Kazuki loves Ako, but his desired paramour is more interested in another girl at their school, Chikage. Crushed by the rejection of his admittance of love, he goes to quit the club he joined for her, but Chikage prevents this. She gives him an offer: join their triangle, and everything will be peachy! Kazuki quickly becomes a tool in Ako and Chikage’s love-life, but tools are meant to be used and abused, so why’s Ako the one tied up? Beyond the triangle tales of those three, martial artists find a quick and sweet way to win victories while a brother tries to hide his girlfriend from his sister, but the bathroom may not be best place for moans and groans to come from!