Qian Lan, a young man from Earth, accidentally transmigrates into the world of Pirate King and awakens the Naruto System, gaining the power of chakra and ninjutsu. Torn between the Marines' and the pirates' ideas of justice, he meets Uzumaki Naruto, who also transmigrated there, as well as the bizarre duo of Zoro, who wandered into the Akatsuki's base by mistake, and Uchiha Itachi. Powers from another world stir the Grand Line as chakra clashes with Haki and ninjutsu combines with Devil Fruits. The World Government watches with hostile intent, while the mysteries of space and time await their answers. Qian Lan sets out on his journey, forms bonds with many companions, and searches for a way home. Can he ultimately forge a whole new legend connecting two worlds?
