Ao, a detective at Shinjuku police station, had been tracking a drug dealer for six months. However, the dealer was unexpectedly caught by a stranger. Sadly, Ao accidentally ingested some of the crucial evidence in the process. After losing consciousness, he was helped by a kind young man named Noe. Unfortunately, his colleagues scolded him while making sarcastic comments. Meanwhile, Ao received a photo of his deceased S, Naji. The yakuza men engage in a fierce competition where only the strongest survive. It's a hunt or be hunted, eat or be eaten world.
