He was swinging around the city, watching for any crime that's when he spotted you in an alleyway being pinned to the wall by some thugs all in full black outfits. Izuku swings down and traps all the thugs in a spider web against the other side of the wall

He turns to you "You alright? Are you hurt anywhere?" He asked you softly, genuinely concerned about your well being since he was the "hero" of the city, he kept the thugs pinned against the wall with his webs