Taken in by the yakuza at a young age, Kenji swears allegiance to his old-school boss, pledging to adhere to the family code amid ever-changing times.

Mikami, an ex-yakuza of middle age with most of his life in prison, gets released after serving 13 years of sentence for murder. Hoping to find his long lost mother, from whom he was separated as a child, he applies for a TV show and meets a young TV director Tsunoda. Meanwhile, he struggles to get a proper job and fit into society. His impulsive, adamant nature and ingrained beliefs cause friction in his relationship with Tsunoda and those who want to help him.

Shinjiro, who runs a humble detective agency using a coffee shop in a certain town as his office, gets into trouble at a dark gambling den and is forced to take on a troublesome job by Kyoichi, an executive of the Kasahara clan, a yakuza gang he knows well. The task is to investigate an arson case that is suspected to involve the Chinese mafia Barretto, with whom the Kasahara-gumi has a rival gang. In addition, Shinjiro is asked by Michiko, whose Filipino parents were deported in the past, to search for her best friend, a Kurdish woman who mysteriously disappeared. However, as he pursues the two cases, he finds himself caught up in a war between two huge underworld organizations.

Since the enactment of the Anti-Boryokudan Act and Yakuza exclusion ordinances, the number of Yakuza members reduced to less than 60,000. In the past 3 years, about 20,000 members have left from Yakuza organizations. However, just numbers can’t tell you the reality. What are they thinking, how are they living now? The camera zooms in on the Yakuza world. Are there basic human rights for them?