A Ninja Comes to the World of Martial Arts

Opening his eyes, Itachi was surprised to find that he had actually traveled through time. Come to the world of Gaowu, where technology is not yet developed. But the power that people have is shocking to the world. If you can't beat it, what should you do? It's okay, Itachi uses the Blood Chakra Eye to directly retrieve objects from foreign lands, grab a handful of Gatling, and start doing it.