Gouki Aratake, the strongest delinquent in Seisen Middle School, wants to be like his revered senpai, the former gang leader "Shiroyan"(White Devil). But he and his gang can't believe "Shiroyan"-Naoya Shirakawa of the Idiot Trio-has gone soft. Aratake is unable to accept it and wants the old Naoya back, so he and his gang abducts a cross-dressing Yukimura, who they mistake for Naoya's girlfriend. This attracts the attention of Misaki and Usui, and, with help from Aoi, who studies at Seisen, goes looking for him. After changing into disguises and a few interruptions by their friends, they sneak into Aratake's hideout, where they find him arguing with one of his friends over Naoya. A fight later erupts between Naoya and Aratake, with the former defeating the latter. A crying Aratake admits he only wanted to be strong like Naoya, who later gives him some words of encouragement. With the ordeal over, the Idiot Trio introduce Misaki to the gang as their "Chief Maid President,” a more fearsome gangster than them, much to her horror. However amidst the chaos, they have forgotten about Yukimura.