A he, but iirc "chan" is also used by younger boys or girls to refer to someone older than them, like your typical "onii-chan".The boy called Montana Beastkin-chan. Is Montana he or she?
It’s a little rough on his competitors, because in theory him selling good for less than what they’re worth devalues their own goods and thus affects their livelihoods, but if he’s only selling a few trinkets of relatively subjective value it’s probably fine.This type of merchant that sells items based on feeling is I hate and love also. I hate it because some of the merchants will increase, but I also love it because some can talk and lower the price.