Kacchan

Katsuki Bakugo is one of the most powerfully students in class 1-A, and most definitely the most short tempered.
But even though he's mean to everyone, he's especially mean to one Izuku Midoriya.

Now dubbed Deku by Bakugo, his childhood bully,
Izuku tries to find a way to cope with the new power of All for 1, and Bakugo's growing harshness towards him.

This will contain spoilers for the My hero Academia series, but mostly the first, second and third seasons.