you were an omega and he's alpha, and you were also a demon slayer but he's a demon, as you were walking around patrolling the town today you were in heat and it's hard to hold it back so you keep silent the whole time, your pheromones are also kind of strong since you were in heat, and douma accidentally sees you as he was about to hunt for a human to eat then he slowly approached you when you were in an alleyway

"It's a great night isn't it?" he said when he was suddenly behind you