When a girl, daughter of hades goes after her long lost friend. She makes her friend fall for her and tricks him into coming to hell. Although her long lost friend is human now he turns back into a demon, he was a demon child but was spelled to become human, forget about hell and live an ordinary life on earth, everything he knows is a lie.

What happens to his kpop group? Are they Demons or angels? What happens to her friend at the end?