Shin is Lin's brother who proves to be more loyal to his friends than to the Red Dragon Crime Syndicate. He appeared in Session 25:The Real Folk Blues (Part One), where he assists Spike in a duel against members of the Syndicate. He is the one who informs Spike that Vicious has tried to seize control of the organization and was sentenced to death. Shin also states that everyone close to Spike is being hunted down.
Soon, in the next episode, Shin helped Spike raid the Syndicate base but before they could confront Vicious, he was shot and killed. He's last words to Spike telling him that he was hoping that Spike would become the Syndicates leader.