Naruto: From the Start, I Had Heartsteel and Shattered Susanoo with One Punch

[Hokage Fan Fiction] [Heartsteel System] [Extreme Martial Arts] [Infinite Growth] [Overwhelming Power Fantasy] [Smart Protagonist]

After transmigrating into the Hokage world, Aoki Sa becomes an unknown orphan in the aftermath of the battle at Konoha.

His chakra reserves are pitifully low, he has no talent for ninjutsu, and he is assigned to a "suicide squad," about to be sent to the front lines of the Second Shinobi World War as cannon fodder.

Just as he falls into despair, a crisp sound rings in his mind:

"Ding!"

[The Heartsteel System has bound itself to you. Each time a charged attack hits an enemy, your maximum health permanently increases. Health is physical strength!]

Ninjutsu prodigies? One punch from me can blast you and your technique into a cloud of blood.

Kekkei Genkai? In the face of absolute strength, that's just fancy footwork.

Susanoo? Let me stack a hundred thousand layers of Heartsteel, then we'll see how you like your chances.

From then on, the shinobi world gains an unreasonable god of physical might.

He can't form hand signs and knows nothing about nature transformation. He only knows one thing:

Beat people, get stronger, then beat even stronger people.

The "ding" never stops, and neither does his power!

One day, when he faces Madara Uchiha's Perfect Susanoo, Aoki Sa's body grows a hundred meters tall and he throws a punch charged with a hundred thousand layers of accumulated blood and energy.

The entire continent trembles.

"Lord Madara, I hear you want to dance too? Then catch this."