17 parts Ongoing MatureHumans are cute, Felix decided. They string lights up when it gets cold outside. They collect shiny objects to decorate themselves and their nest with- and when it gets dark, they grow drowsy and burrow themselves under fluffy quilts. Humans aren't aquatic creatures to say the least- without fins or webbed feet or even the ability to breath submerged! But they still flock around sources of water to splash and play.
This human, though- there was something quite peculiar about him. Strange. Instead of looking at him with utter fear, shock, or in some cases arousal- he just seemed confused. The cute twitch of his nose and the tilt of his head. "What are you doing here?"
"Umm... you didn't summon me?"
"What? No. Why would I summon a sex demon?"
"I don't know, maybe to have sex with?"
The human seemed utterly perplexed. "Well, it was nice to meet you incubus, but you can go back to hell now."
And that's the thing. Felix couldn't.
Or
A guide to making an incubus from hell fall in love with you- by one, Hwang Hyunjin.