Reborn as a Snake, Trained in Naruto to Become an Immortal

Xu Yan traveled to the world of Naruto. There are no cataracts or pinkeye, but I have traveled through time and become a white snake. Fortunately, the neon language he took as an elective in his previous life allowed Xu Yan to understand what people in this world said normally. Snakes have a short life and do not understand chakra or magic. In order to survive, they have to cultivate the Tao Te Ching internally and practice the breathing method externally. However, they did not expect that hundreds of years later, they would be called the White Dragon Sage by the world... Madara: I once wanted to accept Yan as a psychic beast, but later I found out that it was a sage. Uchiha Mirror: Immortal, I am willing to offer my eyes to you, all I ask is that you protect our clan. Itachi: Compared with me and White Dragon Sage, my eye skills are all flawed. Naruto: Thank you, Brother White Dragon, for saving my parents' lives! From now on I will be your most loyal little brother! ..... In the ninja world, a person is reborn as a snake, and instead of cultivating chakra, he becomes a celestial being. One day, someone came from outside. When the Otsutsuki clan saw Xu Yan's appearance clearly, they couldn't help but spit out: "It turns out that we are the inferior creatures!"