in this AU deku is an angel of heaven. One day he went down in hell to give bakugo (the king of hell) a message

Deku: umh bakugo, sir, king of hell. Well we angels were wondering if there could be an alliance between hell and heaven we don't want any more wars.

Bakugo: look, I am not very interested, but if you give me something Interesting I might change my mind~ winks and smiles