Demons are the most ruthless creatures in the world. They deceive the men in the world and make them turn upside down and bleed like rivers of blood just because of a charming smile.
Demons are also the most infatuated creatures in the world. They only choose one partner in their life. Once they choose, they will depend on each other for life and death.
Demons, like humans, have desires and will do whatever it takes to achieve their goals. Demons, like humans, are waiting for their destined partner to sing the song "Demon" that they sing for only one person in their lifetime!
It's either love or calamity! Thousand-year calamity always follows, the wheel of fate has already been opened, love or calamity is just a thought!
Concept: You can't have your cake and eat it too