Someone has activated their quirk on accident due to a slight malfunction. So now, everyone's past selves have been teleported to the present. Everyone's happy that they get to meet their past selves, while others aren't too happy. Some are taking selfies, others are telling their past selves about the present. But Deku, he looks serious... He stands in front of his 4-year-old self without saying a word, as he stares at himself with a cold look