One Piece: Start with the Power of One Punch Man

My name is Mo Fei, and I am a time traveler. He accidentally traveled to the world of One Piece and gained the ability of One Punch Man. One punch makes a little pirate, two punches makes a big pirate, three punches makes a Yonko, and four punches makes a Pirate King! What, you said I'm a villain? Sorry, I'm a nice guy. It's just that I have a problem, that is, if I see someone who is unhappy, I will punch him away. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.