Rewind. Reset. Remember. (слэш)

The Underground: a network of vigilantes supported and directed by the Hero Commission to assist in maintaining the structure of Hero Society through any means necessary.
Izuku descended into the Underground after the War, a quirkless medic with no future. Presented with a deal of a lifetime. He entered the doors of Illusion and into the laps of Heroes spilling all their secrets and wants. Strings of Hero Society plucked by the Commission while Izuku and his crew deal with criminals in forgotten areas of the city. Whatever missions the Commission throws at them just a bonus.
There are whispers of a new threat growing in the city and, to make matters worse, Izuku finds himself with the eyes of the Number One hero on him. A slippery slope into something Izuku can't escape.
If there’s anything Izuku has learned as a vigilante and spy, it’s that everything is not what it seems.