GJ-bu

Shinomiya Kyouya is assigned to join the GJ, a club that holds duels in a room of an old school building. There, he meets Mao, the club's leader known for her strong personality; her younger sister Megumi, who displays erratic behavior; Shion, an intelligent but socially awkward member; and Kirara, a quiet girl who is often seen eating. The time spent with these distinct individuals moves quickly.