Guren 5

Also known as: グレン5, グレン5-ファイブ-

by Kazutaka Kodaka, Riku Shinoda

A mysterious girl from a destroyed planet shows up at the school holding the most delinquents. Arriving to school a bit late, Raku Itsushima is welcomed by a school wide brawl to decide the strongest in the school, as well as the one to experience a special something rewarded by the girl. Raku's adventure to protect Earth starts now.