A human Transformer story set in the world of One Piece our main character has the abilities of Sari Sumdac from the Transformers Animated Series and instead of turning into a single Transformer he changes into different cybertronians from the Transformers series for example imagine seeing Tidal Wave from the Playstation 2 game Transformers Armada in his transformed State rising from the ocean outside of marine headquarters and then transforming into his human shape which is 300 meters tall Little Oars Jr. from the whitebeard crew for example is only 60 meters tall during the Summit war of marineford to save Ace I just think that would be both cool and funny thinking about the reactions everyone would have to seeing that giant rise from the sea towering over everything and just reaching over to grab Ace while the marines can barely do anything to him though the Tidal Wave form would be used as an absolute last resort because he's so big and far too destructive for the crews normal adventures, other forms could be an Optimus prime from any of the series or games same with any of the other transformers our main character will have though he will mostly just stick with the Sari Sumdac portion of his abilities only using the transformer forms for certain things like to go all out on strong enemies or a fast multi passenger vehicle in Alibasta so they can travel the dessert faster or a helicopter or airplane for air reconnaissance and attack, a transformer whose transformation is a boat could really help the straw hat crew sometimes. Our main character would meet Luffy during the beginning of Luffy's Adventure so he would join the crew before Luffy meets Zorro so the story would pretty much follow the same path everything is what we already know about the one piece series but with the insert of our new character changing things with him being there.