Tenjou Tenge

Two delinquents, Souchirou Nagi and Bob Makihara, enter Toudou Academy with the goal of dominating the school through their own strength. On their first day, they meet the Jyuukenbu, a school martial arts group whose members—Maya Natsume, her sister Aya, and Masataka Takayanagi—quickly defeat them. Because of their presumed ties to the Jyuukenbu, Souchirou and Bob are later attacked by the Enforcement Group, a body that supervises the school’s martial arts clubs. As they become entangled in the conflict between the Jyuukenbu and the Enforcement Group, the two delinquents are forced to join Maya’s group and train to increase their own power.