Shin is Lin039s 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. wiki