After his wife was killed, the criminal policeman Ange Goro resigned from his public office in order to avenge his wife and finally successfully killed the murderer, but his revenge journey was not over.Five years later, Ancheng was called "Yamamoto". On the surface, he worked in a garbage dump, but secretly worked for various gang organizations, and used this to find out the dark story behind the murder of his wife in the underground world.Ancheng once accidentally rescued the leader of Yoshioka team, and Ancheng was highly appreciated by Yoshioka.Yoshioka takes good care of Anhei and is willing to provide him with information selflessly.Yoshioka often invites Ancheng to join the gang, but Ancheng is never willing to get involved in the underworld.The Yoshioka Group, which is unpopular in the territory, is weak, and Yoshioka is disgusted with asking for help from the superior organization, the National Association, so it is often in a dilemma.One day, after Yoshioka received a call from an old friend, he insisted on moving the entire group to another place to get rid of the shackles of the National Association.When the new police officer Xi investigated the flow of an illegal fund, he found that all the relevant people were killed by Ancheng as targets of revenge.The west launched an investigation into Ancheng, but found that the police station was also involved in the illegal funds, and Ancheng's former files had been deleted in advance.Xi, who believed that Ancheng's wife's death was related to this fund, decided to contact Ancheng directly, hoping that both sides would cooperate and share information, and hope that Ancheng would no longer have a shark man, but would bring the criminals to justice in a just way, and eventually crack the entire case.In an accident, Takagi, the younger brother of Yoshioka Group, rescued the president of the National Association and was about to be on par with Yoshioka. Ancheng tracked down the mastermind behind Ogasawara, but he had no heart to take revenge in front of his wife. Nishi, who had promised not to meet with Ancheng again, accepted Ancheng's entrustment and continued to investigate the mastermind behind Ogasawara... Ancheng's revenge, Yoshioka's organization, and Xi's justice, eventually inevitably went to nothing.