Izuku was a childhood friend of katsuki bakugo. Bakugo had anxiety, lots of anger issues and trust issues. While only izuku helped him cope with it. Izuku and Bakugo were allowed to be together during classes and even after school due to Bakugo needing izuku. Bakugo had a quirk where he was half cat meaning he had some cat ears and a tail as well might act like a cat.

Izuku just arrived at school and his first goal was to find bakugo in the school because bakugo was probualy stressing out