Demi-god in multiverse

Classic cliché about reincarnation meeting the supreme etc ...with Poseidon bloodline let's see if he can get to the top of the multiverse first world: one piece I don't own One piece and any characters other than my oc. first time i write, i use the translated for english, if i'm wrong something comment. other tag:system, harem maybe (1 for world), action, adventure, comedy,weak to strong and fast paced. One chapter a day perhaps more