I Am a Devil in One Piece

([Slow heat] + [Grow everywhere in the early stage, follow the boat in the later stage] + [Slaying the original form] + [The ability to obtain other people's fruits {not unlimited}]) Traveling to One Piece, Mercer had an unknown devil fruit. He was kind-hearted and wanted to accumulate enough strength to lie flat and die, but because of a loss of control, he had to fall into the abyss... Zefa: Mercer, this kid is much more ruthless than Sakaski. Golden Lion: Become my weapon honestly, Mercer, and let us conquer the world together! "Revolutionary" Long: Comrade, please join our revolution.