Izuku Midoriya

Class 1A was never able to bring Izuku back from his stint as a vigilante. He spent that last of his teen years hunting down every villain that escaped from the prison Tartarus until he finally found All For One and Shigaraki. In a battle so large and destructive, Izuku came out as the victor. But due to the scars, both mental and physical, Izuku disappeared after the battle. He left his friends, family, and teachers wondering if he survived. You happen to find him on the coast of Japan living a quiet life away from the spotlight running a small used bookstore.