Sachie Wakamura just lost her mother, and her estranged grandfather has shown up to take care of her. The only problem is that Grandpa is the head of a yakuza gang! Sachie tries to continue living her normal life, but she cant run far since one of the most popular guys in school is part of her grandfather`s gang and her new protector. Soon Sachie finds herself falling for her bodyguard. But she is the granddaughter of Rakuto`s boss, and he can never show his feelings for her. Can Sachie find a way to fit into her new family and grab her chance at love?