One Piece: The Gluttonous Heavenly King

After transmigrating to the world of One Piece, Yisuo discovers that his only talent is eating. He originally thought he could join the Marines and slowly work his way up, like some vice admiral who liked throwing cannonballs with his bare hands. Then one day, he discovers that he can evolve parts of his body at will. He lowers his head in thought. So, where should he start...