Let Me Be Selfish (At Least For Today)

Shouta gets hit with a mystery quick while surrounded by Kurogiri's mist and finds himself somewhere else. In the blink of an eye, Shouta finds himself on the worst day of his life, with none other than Shirakumo Oboro standing in front of him. But is it real? Or simply a quirk to break him? And if it is real, will Shouta be strong enough to change the course of history?