This is a modern urban fantasy comedy. After deliveryman Yang Huahua selflessly saves someone, he unexpectedly enters a world where the rules governing prices have changed, while his own assets remain unaffected. Completely unaware of what has happened, he repeatedly finds himself in misunderstandings while withdrawing money, paying bills, and interacting with friends. Despite these sudden changes, he remains sincere and eager to help others, never realizing that the mysterious richest man everyone is searching for is none other than himself.