My Mumu Fruit Seems a Little Different

After dying of a terminal illness, Rollo came to the world of pirates. There is no system, no cheats. Even the body is malnourished. Rollo, who was born an orphan, slowly rose to prominence after accidentally obtaining a Devil Fruit. Rollo doesn't want to be king, he just wants to survive and find a beautiful wife for the rest of his life, but reality always forces him to keep moving forward.