That doesn't give him the right to try to kill our precious Ingyu
It also doesn't give ingyu the right to kill the human tho :c
He was unconscious, the angel tried to kill Ingyu while he was CONSCIOUS unlike Ingyu when he did something to Kangin. And Ingyu felt bad and apologized to him unlike the angel who kept targeting Ingyu.
Consciousness has nothing to do here. The angel is trying to protect humans from being killed by incubus because he knows there is a high possibility of it. Actually, the fact that Ingyu can kill him unconsciously is even worse. If he killed him, his apologies and feeling bad would mean nothing lol. I like Ingyu but lets be objective here, if the angel doesn't have any ulterior motives then he wants good for the humans. He doesn't want to kill him just because, but because Kangin is in danger because of Ingyu
And even tho I hate what the angel did I kinda understand him bc incubus can kill humans and so he wants to prevent it. So I hope our cute devil shows him that what connects them is true love and he wouldn't hurt the boy and they can live happily ever after