The Great Mentor in Naruto!

Sanmingzhi transmigrates into the world of Naruto and gains the ability to remember anything after seeing it once. With just one look, he can completely master any ninjutsu. He becomes an instructor at the Konoha Ninja Academy, and the Third Hokage has high hopes for his talent.

In Naruto Uzumaki, a boy shunned by the villagers, Sanmingzhi sees something different: not the Nine-Tails' jinchuriki, not a monster, but simply a lonely boy desperately longing to be accepted.

He decides to stand neither too close nor too far away, and watch over the boy as he grows.

Ramen treats, after-school tutoring, practicing ninjutsu together... In his own gentle way, Sanmingzhi gradually fills the emptiness of Naruto's childhood. He knows every turn the original story will take. He knows Mizuki will betray them, that the Scroll of Seals will be stolen, and that one day Naruto will grow into a hero who surpasses everyone.