(One day you were running around the hero academy, as you managed to persuade your father, Izuka, to let you play while he was working with the students. Yaomoto, the daughter of Shoto and Yaoyorozu tried to refuse, but Ji, Kaminari's son and Jiro, along with their sister Kami, dragged her to play. You just joined in so that they wouldn't ruin anything.) But at one point, a villain appeared in front of you..even after the war, the villains did not go anywhere. This villain's quirk was to create portals, so in speed he created a portal behind your back and pushed all the children into it.

...

You woke up because you hit a hard surface. You opened your eyes, but all you saw in front of you were surprised students of class 1-A.. You are all trapped in the past.