At the prestigious Ourin Academy, girls have put down their makeup bags and picked up weapons due to the school’s violent takeover by the beautiful Kusunoki-sensei! Though some fight for her cause, Fujikura Nagomi and Sakurano Yuu are acting as the protectors of the school and are trying to put control back in the hands of the president. With flying attacks to dodge and nefarious schemes to be foiled, can the girls help remove the school from the hands of the enemy?
Tsukamoto Tenma is young, bright, and smitten with the school hottie Karasuma Ooji. She's desperate for his attention, which is unfortunate considering he barely gives her the time of day! Throw Harima Kenji, the school delinquent with a crush on Tsukamoto into the mix and you've got one twisted love triangle of unrequited proportions! Can love find the trio happiness before their attention-grabbing stunts end up hurting more than their egos?
Both School Rumble and Haru share the same nonsensical humor in unrealistic yet not impossible situations. Ourin Dakkan could have been an episode out of School Rumble.