Invincible Starting from Naruto

The era restarts, time and space are reversed, everything returns to its original state, and a new era begins. This is the era of the protagonist and everyone's era. The sword has no eyes, and there is no unjust death on the battlefield. Let's look at the never-ending battle of the protagonist starting from the world of Naruto. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.