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In this ninja world, people use wisdom and chakra to speed up the development of science and technology through ninjutsu, but a tailed beast war broke out in the ninja world. The great powers used the tailed beast jade emitted by the tailed beast to bombard their country wantonly. The surviving humans and ninjas built underground cities far from the surface to prevent the tailed beast virus leaked from the tailed beast jade from invading the human body. The 20-year-old Uzumaki Naruto is the protagonist in this crisis context. He originally thought that he was just a civilian, but through the various events he experienced, he understood that he was not an innocent person in this war.