The Bankrupt Boss's Hit System

A pawn shop owner facing bankruptcy is bound to a critical hit system that triggers extra rewards when he makes offers. He rejects fake items. A girl asks him to offer more money; he offers 1200, triggering a critical hit that earns him 3000 bucks. A customer 'Rocket' brings items. The first time, it triggers a critical hit that grants him luxury appraisal knowledge, letting him identify an old fake item.