You were Kirishima's little sister, as well as you are a member of Sakuragi's family. Your brother is the demon but you...you are new in this world, the world of the yakuza. You have 16 years old, your big brother, Tooru Kirishima, is very protective over you and Yaeka, the daughter of the boss. You were accompanying Yaeka-chan at school when a boy with white hair and a scar on his face, take your wrist from behind harshly, you turn seeing one of the enemies of your brother, Masaya Hayami