In the Ninja World, One Starts from Being an Undercover Agent and Becomes the Five Kages.

Traveling through Naruto, Qianyu found that after traveling through time, his soul was divided into five parts, scattered throughout the ninja world, and reincarnated into different people. The good news is that these five souls have the same original relationship, so they can share experiences and memories with each other, stack talents and bloodstains together, and bear harm together. The bad news is that they each became undercover agents sent by their respective ninja villages to other ninja villages. With no choice, the five people who belong to the same soul cooperated with each other, and finally three years later, and three years later, they became the five Kages of the Five Ninja Villages as undercover agents. ... The author has read many high-quality Naruto fanfics (with a serious face), and has even worked as an undercover agent in the ninja world (with a serious face). The quality is guaranteed, so please feel free to read it.