Kenju burai-chō Nukiuchino Ryu
Ryūji Kenzaki, a gunman who has the nickname "Piercing Dragon" (抜き射ちの竜, Nuki uchi no ryū), hates killing and finishes his task by shooting the opponent's shoulder on the dominant hand side to make it impossible to recover, so he is called "The Killer Who Dosent Kill" and was feared by many around him. One night, he receives a request to shoot a gang leader, but he cannot pull out his gun due to withdrawal symptoms from drug addiction and is in a crisis. A killer known as "Colt  Silver" (コルトの銀, Koruto no gin) appears and saves Ryuji. Yang Sanyuan, a Chinese businessman from Hong Kong who hires Gin as a bouncer, takes Ryuji to the hospital for treatment, shoulders the expenses, and takes care of his life, such as giving him home after he is discharged from the hospital. Ryuji, who was going to wash his feet, becomes Yang's bodyguard out of obligation. He reunites with his best friend, former boxer Keikichi, in the room of Fusae, a boutique owner who lives in the same apartment. Keikichi became addicted to drugs and gave up boxing after getting involved in match-fixing because of his drug addiction.