Naruto: I am kirito Uzumaki

I am Kirito Uzumaki... he traveled through time and space to become a member of the Uzumaki clan, but the timeline was during World War II ninja. If kirito had not intervened, the end result would have been that the entire clan would have been distributed by the three ninja villages! Death begins, it is better to rely on yourself than on others! Kirito can only begin to save himself! Kirito's rise brought an unprecedented revolution to the entire Shinobi World! Studying medicine will not save the Shinobi world!