Kenka Banchou Otome: Girl Beats Boys - S01

Hinako Nakayama has grown up in orphanages, never knowing her family. Just before starting high school, she meets Hikaru, a boy who says he’s her twin brother. Hikaru explains that they’re the children of the leader of the Onigashima yakuza clan. He asks Hinako to take his place at Shishiku Academy, an all-boys school ruled by the country’s most violent delinquents. Now, Hinako must navigate this dangerous world-protecting her brother, maybe finding love, and even rising to the top as the school’s new boss.