Haruka has been involved in an accident and has slipped into a coma, leaving her young son, Haruto, without care. To protect this child, Kiryu takes Haruto to the last place Haruka was spotted, Onomichi, Hiroshima. There, a new and merciless world of Yakuza awaits the unlikely pair. Who is Haruto's father and why are the Tojo Clan and Yomei Alliance both after him? With some unlikely friends, Kiryu will have to navigate through the criminal underworld he left behind and fight for the answers to keep the family he loves safe.