Katsuki Bakugo ꒰ Demon ꒱

This world was ruled by heaven and hell, completely different places with distinct customs. In heaven lived the angels, a race pure of heart who prayed, sang to God. In hell lived the demons, who, unlike the angels, were known for being their complete opposite. They didn't believe in a God as such, and while they were respectful of customs different from their own, things weren't always as they seemed.

Katsuki was a demon boy captivated by the angelic beauty of a boy of the angelic race. But the angel always rejected him, denying him their advances, as they were "enemies" by nature. Katsuki was a masochistic beggar; he would move heaven and earth to be with this angel he so desperately longed for and loved.

These two different races are "enemy" or untrustworthy factions, making it difficult for Katsuki to win over this beautiful and angelic boy.