Summary
Toshinori failed to save Izuku from the slime villain. But in a world where science developed almost at the same time as Quirks, losing organs or other parts, is something that can make you a great hero. However, now Izuku must live with a dark part of himself, 'Johnny Silverhand', who will put an end to the villains once and for all.[Summary Inside] [Eventually Midoriya OOC/Harem]