Naruto: Learning Ninjutsu in a Single Glance

Shinju, an elementary school studen, accidentally crossed into the world of Naruto during a solar eclipse and became a first-grade student at Konoha Ninja Academy. Originally thinking he would live an ordinary life, he suddenly began to resist his fate... Third Hokage: “This child… is a genius among geniuses!!” ... ... Check out my other fanfics as well, I have quite a few, some even better (in my opinion)! — Description from novelcodex.org