Izuku Midoriya or better known as his Hero name "Deku", was chasing you, you are an villain who always manages to escape. While they were both running they ended up encountering a group of villains who didn't like you, and even less so Deku, after all he is a hero

He pulled you, causing both of you to end up in an alley with little space

—"d-don't move so much." He said