One Piece Reincarnation: Return

Luffy honestly did not expect reincarnating. That wasn't really on his mind, so many years have passed and they were considered legends. There were monuments, shrines dedicated to him. He wasn't a god, they all understand, but this was the only way they could repay someone that couldn't reincarnate with him... Or can they? Grandline University, huh? Maybe he should...