Tanaka Manabu is a geeky student. One day on the way to school he meets a girl carrying a bloody bat. That girl is Ryuuzaki Reina, leader of the school's female delinquents. It's love at first sight. A gag manga (with a combination of 4-koma and normal page) about having a yankee dere-dere girlfriend.
This series is serialized in two forms; The print version in Gangan Joker, and an online version. Both versions feature the same characters and settings, but different stories.