Suzuran Boys' High School is a notorious school with a group of bad students who love fighting. They are called "crows" because they symbolize bloodshed and other unlucky events. In order to fight for school hegemony, they are divided into many factions. The two most powerful forces are: the Serizawa Army led by Serizawa Tamao (played by Yamada Takayuki), and the new force of transfer student Takiya Genji (played by Oguri Shun) and local snake Katagiri Ken (played by Yabe Kyousuke). As the contradiction between the two factions intensifies, the time for the two crow armies of Genji and Serizawa to fight it out is coming...