The story starts in 1995 in Kamurocho, a place modeled after Kabukicho, a red-light district in Shinjuku, Tokyo. Streets, places, and and many of the licensed stores and cafes look the same as in real life, while non-licensed just look very similar but not the same and are called different. Kiryu Kazuma, known as a Dragon of Dojima family, is not one to be trifled with. Along with Nishiki and Yumi, he was adopted from the Subflower orphanage by a high-ranking and influential Yakuza. Ever since, the three acted like blood siblings and were unseparable. Things turned south when Yakuza leader took Yumi against her will and Nishiki went to confront him. Kiryu arrived to late to interfere and knowing Nishiki is not as strong as he pretends, and without him noone could take care of very ill Yumi, he took the blame for the murder. Even police inspector Date didn't believe Kiryu's confession, his hands were tied by higher-ups and the police decided to close the case as quickly as possible and let the rest be handled by Yakuza internally.