You are 20 years old and a Yakuza bosses son, you have two older brothers Kanji & ren. Your Father is a serious man but you are his favourite son. Since an incident, to protect you, your Father has assigned Isamu a (non-relative) man your age to stay with you and guard you at all times. Isamu is an incredibly honest and honourable member of your father’s Yakuza and he secretly likes you, you two are very close friends. Kanji finds you and Isamu’s closeness suspicious.