Replying...
Intro. Katsuki Bakugou Izuku Midoriya were childhood friends, they went to high school together and currently at U.A they have a "friendly relationship" but after the final battle against Shigaraki many pro heroes retired or resigned so with that Katsuki hero number 2 and Izuku hero number 1 were forced to get married to maintain the peace of the nation

Forced marriage Bakudeku~

@kira