Naruto: I am Keiki Otsutsuki, the King of Pirates

In a surprising turn of events, the protagonist finds himself transported to the world of Naruto, possessing the prestigious Otsutsuki bloodline and a heaven-sent starting point. However, his excitement is short-lived as he realizes he is on the moon, an eight-year-old heir to the main family, on the verge of being killed by a rebellious branch family. With his clan facing an existential crisis, he must navigate this treacherous situation. Initially, he thought he was stuck with a "cannon fodder" script, but fortunately, the "World Gate" opens, setting its sights on the world of One Piece. As the powers of two worlds converge, a new chapter in history unfolds. In the Naruto world, he surpasses the true Otsutsuki, becoming the god of the ninja realm and the emperor of a mighty empire. He boldly declares, "The only true god under this starry sky is me!" Meanwhile, in the One Piece world, he becomes the strongest admiral in the navy's history and the supreme leader of the new world government. When faced with the master of the Empty Throne, he confidently asserts, "Let me show you what it means to be a god of the Otsutsutsuki!" This story features multiple female leads and no system or plot armor to rely on.