Konoha: Teaching and Educating? Choose Team 7!

Transmigrating to the Hidden Leaf Village, Cangwu becomes a member of its 'pyramid scheme': a genin teacher preaching the Will of Fire.

Just as the Rookie Nine are about to graduate, his memories awaken. By completing missions from the Teach and Nurture System, he earns a reward:

A Devil Fruit-the Glint-Glint Fruit.

To gain even greater power, he accepts the system's advanced mission.

After Kakashi becomes utterly drained, Cangwu takes over as Team Seven's jonin instructor.

Every time Team Seven improves, Cangwu earns another reward.

"What?"

"He's a Ninja Academy teacher?"

"Come on, explain this to me!"

"He takes down a Susanoo-clad giant Buddha with one punch... and you're telling me he's a teacher?"

Cangwu: "Have you ever been kicked at the speed of light?"

Kurenai Yuhi: "You cheeky brat! Don't think getting stronger means you get to be on top~!"

Hinata: "Mr. Cangwu... you're so naughty~"

Do you believe in the light?

Kaguya Otsutsuki: "Stay away from me~!"