He, dressed in red like blood, is what the world calls the flower of the other side, ruthless to the world. But he has a special feeling for her, doting on her, teasing her, and 'bullying' her.
She, dressed in white like snow, was originally an ordinary girl in the 21st century. She died in a battle between fairies and monsters, but she became a blessing in disguise and became a fairy in heaven.
What will happen between the "weak" little flower fairy in heaven and the "strong" demon in hell?