Kou operates as an unlicensed physician and pharmacist out of Yokohama's Chinatown, running what amounts to a black market medical practice. He deals in information and illegal goods alongside his actual medical services—the kind of guy who can get you what you need if you know the right person. He's got Kubota on his payroll for occasional delivery work and apparently keeps close tabs on whatever's going on with Tokito's right hand, though the specifics of that concern aren't entirely clear.
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