One Piece: I'm the Real Monkey D. Luffy!

What if you woke up as Luffy—but without the Gum-Gum Fruit? With a revolutionary leader for a dad, a naval hero grandpa, and enough clout to throw punches with a Saiyan, this transmigrator thought he'd cruise through the Grand Line. No Devil Fruit curse? Check. Legendary bloodline? Double check. But when a mysterious childhood friend appears out of nowhere, this 'simple' pirate adventure spirals into uncharted waters. The seas have never been this unpredictable!