The Reincarnation of Justice: Reacher as Izuku

When Jack Reacher, a legendary soldier and vigilante, passes away after a long life of fighting for justice, his journey doesn't end. The gods, impressed by his unwavering moral compass and unyielding strength, reincarnate him into a world teeming with chaos and corruption: the My Hero Academia universe. Born as Izuku Midoriya, he is quirkless like in canon but retains the strategic mind, observational skills, and physical training of his past life. However, his destiny is altered when he's kidnapped by Overhaul at the age of ten and subjected to cruel experimentation.

The procedure grants him a new quirk: Nanokinesis, the ability to manipulate and control nanotechnology that can enhance his body, create weapons, and even reshape the battlefield. With these powers and the discipline of a soldier, Izuku begins his journey to cleanse the hero world of its rot.