The angel in abomination

In the highest realms of heavens, angels live in harmony serving the gods and goddesses. One day, someone attempts to murder the heavenly emperor and frames a poor angel. Her name is Lily. Ever since young, Lily was always bullied by the goddesses and other angels because of her extraordinary healing abilities. When she gets exiled outside the heavenly realms, she finds herself vulnerable and has nowhere to turn to. She comes across an injured demon, being the pure hearted soul she is, she heals the demon with no hesitations.

It turns out that the injured demon is none other than the commanding demon, Marcus and as a gratitude to her help, Marcus offers her a place in the realm of demon world. Lily accepts the offer and meets the deadly demon king, Dean. Dean reluctantly lets Lily stay in his realm but wants her to prove her worth. Lily struggles to prove her worth as Dean continues to be harsh on her.

Has fate brought them together for a purpose? As Dean and Lily slowly starts understanding each other, they find themselves preparing for the six realm war. Will Lily be able to fight against her original realm? Or will Lily choose to stand by Dean's side?