Naui Wiheomhan Suhosin

Sowon Han is awakened by a kiss from a mysterious demon who disappears after she wakes up. The next day at school, she meets Hyeon Yu, the demon who kissed her and claims to be her guardian. He insists they share a forbidden love from a thousand years ago, but Sowon has no memory of him or their past. Hyeon is committed to rekindling their relationship, while Sowon remains unaware of their history. The story explores whether Sowon will eventually remember Hyeon or if he will follow the darker path of his demonic nature.