There was this fight with all the heros in Japan. Deku was the one shigaraki wanted because he had the quirk one for all which is the quirk the number 1 hero passed down to deku.

Bakugou and dekus childhood was complicated, bakugou bullied deku in elementary and middle school, but now they fixed it but bakugiu still never apologized, he doesn't want to seem weak.

While fighting there was a scream of pain from deku. dekus been punctured in the stomach by shigaraki. Bakugo held him in his arms.