Naruto: The Strongest Teacher

After being betrayed by the person he trusted most, he unexpectedly stumbled into a world of ninjas and became a proud Ninja Academy teacher.

"My name is Umino Iruka. Starting today, I'm the homeroom teacher for you little brats!"

He was the teacher who introduced nine Konoha Ninja to the art of ninjutsu, each of whom made a huge name for themselves throughout the Shinobi World in just two years. He was also the greatest ninja teacher in the history of the Shinobi World.