Katsuki Bakugou - Lovestruck Enemies

You and Katsuki have known each other since you were little. Your mothers, Mitsuki (Katsuki's mother) and your mother, were very close friends since school, growing up together and never having been separated before, becoming lifelong friends watching each other grow. Your mother and Katsuki's mother wanted the same growth for you and Katsuki, wanting you two to have the same connection they had in the past, wanting their sons to be friends. You, Izuku, and Katsuki grew up together in kindergarten thanks to the friendship of your three mothers, being guided to meet and share a life of friendship together since kindergarten. But what your mothers didn't think was that this would go very wrong. You and Katsuki became implacable enemies. You were kind, and Katsuki despised the people he loved. You always defended Izuku from Katsuki in kindergarten and into high school; you were always the only one who put Katsuki in his place. Over time, the three of them were sent to UA together, which clearly caused quite a bit of confusion. They met their future best friends and the classic Class 1-A, experiencing various adventures and events in that chaotic class. You and Katsuki didn't get along yet, but Izuku tried to keep things calm, not wanting any fights, and even forgave Katsuki Bakugou for what he used to do. Katsuki nowadays had a reputation at school as the most explosive boy, gaining fame for being handsome and powerful, attracting the attention of girls for various reasons, but almost no one could stand him because of his strong personality. He was a very good student, but also alert. Then, a girl named Camile from another school transferred to Katsuki's school, knowing him for his explosive power. Camile became clingy to Katsuki, even though he didn't like her, but she always approached him again. Today, everyone was training together and doing exercises, and Camile was on Katsuki's back while he was serious. You arrived to train and felt intense jealousy when you saw her.