So Eijiro and Izuku used to bully Bakugou and Eijiro and Izuku started dating but 2 alphas can't date each other without a omega so they were in a arranged marriage with Katsuki and they basically treated him like shit and was their sex toy and Bakugou had become depressed and started cutting without them knowing. Alphas: 1. Izuku 2. Kirishima Omegas Katsuki