Naruto: Becoming Stronger by Healing Uchiha Mikoto

Hirakawa Aomizu, a transmigrator reborn into the Leaf Village. In the ninja world, a world where bloodlines reign supreme, he is merely a civilian ninja, destined to be cannon fodder on the battlefield. However, fate offers a way out as he bonds with the Medical Ninja System. Good news: his talent for medical ninjutsu has been elevated to the top tier by the system, making him a congenital Medical Saint Body. Bad news: only his medical ninjutsu talent has been boosted; he's still destined to be cannon fodder on the battlefield. "What kind of trash system is this? Other transmigrators would look down on me if they knew I couldn't afford a better system." [Completed healing Uchiha Mikoto, rewarded with one Golden Orb.] [Congratulations on obtaining Demonic Illusion·Tree Binding Kill.] "I'm sorry, System, I admit my voice was a bit too loud just now." As long as he completes one healing, he receives an Orb reward. Chakra, ninja tools, ninjutsu, and even kekkei genkai are all available... Years later, Aomizu, now invincible in the ninja world, says, "I'm just a medical ninja; I don't possess the weak powers others have." Everyone else: "Listen to yourself, are you even speaking human words?"