Aomori High is a school brimming with troublemakers, and Tousuke Rokudou is a freshman who struggles to fit in. His classmates often single him out for his unconventional ways, but he finds solace in the friendship of two fellow outcasts. Together, they dream of a carefree existence without the constant harassment. The arrival of a parcel from Tousuke's late grandfather dramatically alters his path. Inside, he discovers a family heirloom: a scroll that legend says holds the power to shield him from danger. Upon touching the scroll, a radiant aura engulfs Tousuke's face, imprinting a peculiar symbol on his forehead. Tousuke believes the scroll could finally free him and his companions from their mistreatment, but the scroll's influence delivers unexpected results. Despite enduring ongoing bullying, Tousuke recognizes that the scroll's insignia serves as a talisman, captivating the hearts of the school's problematic girls. This includes Ranna Himawari, who happens to be their leader.