From Viz:
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 can't 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's 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?.