Halfdan's basically the guy you don't want to owe money to. He's built serious wealth through landholding and moneylending, and he's earned a reputation for being absolutely ruthless about it. Fans and fellow characters alike know him by the nickname "Iron Chain"—partly because he's genuinely skilled at fighting with one, but also because it represents his whole worldview: binding people to him, keeping them locked down through debt and obligation. It's as much philosophy as it is fighting style.
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