Synopsis

Aiba Shiro is a rookie detective assigned to the Shinjuku Precinct. Born and raised in Kabukicho, Aiba is a former gang leader known for his sukajan jacket and afro hairstyle, and his hot-blooded nature and brute strength mean he is constantly stirring up trouble.
When Choi Si-woo – an ace detective from the Korean National Police Agency – is dispatched to the Shinjuku Precinct, the two clash from the moment they meet. Sent to pursue internationally wanted fugitive Murata Renji and his associates, rumors that the gang have infiltrated Kabukicho forces the two detectives into an impromptu partnership and joint investigation. Before long, the possibility of an all-out war between a militant yakuza faction and Kabukicho’s largest host club group begins to surface, and Murata’s gang appears to be heavily involved. Behind the scenes, the shadow of government authority looms large.