Ple-Sen
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So, your backstory isn't really about inquisitorial duties, so I don't see any problems with it. Sheriff seems like a strange choice to me, considering there's also a bodyguard archetype (which is more or less what she did in her early Remian years), which would be a better fit. Guardian also seems like a better option, especially considering the description of this backstory. Although it's very abstract, so I can understand why you didn't choose it.