Naruto: Uchiha Madman, Saintly Doctor!

Reborn in Naruto as Uchiha Fengzhi.

At the brink of life and death, he binds to a god-tier Medical System.

Against enemies: Lightning Release: Anesthetic Needles; Fire Release: Shadowless Lamp.

For himself: Lightning Release: Cell Enhancement; Fire Release: Immortal Flame Baptism.

Akatsuki: Damn Uchiha, why can't we kill them all?

Other ninja villages: Attack Konoha? You mean you want us to fight those Uchiha who aren't afraid to die?

Konoha's leaders: Just kill us already. We willingly admit the village belongs to the Uchiha.

Madara Uchiha returns through Impure World Reincarnation. Uchiha Fengzhi steps forward: "Ninja of the old era, come experience the medical ninjutsu of the new age."

Hashirama Senju: "Since when can the Uchiha use Wood Release?"

The Otsutsuki: "So becoming a god still depends on medical ninjutsu. We were wrong, all of us were wrong..."

The premise doesn't do it justice. Dive into the story!