"I will protect you until my wings burn out."
The new angel Celine takes on the cruelest mission: to protect a boy imprisoned in eternal darkness until his death. The rules are cold: no intervention, no showing up, no emotion.
But the five-year-old Ye Jin she saw had his hands and feet chained up and couldn't even cry. When the angel broke the law for the first time and stole a wild apple for him, the first "sweet" bite the child took made her see hell.
She didn't know that this experiment to protect heaven was numbered 447, with an observation period of seventy years. Every time she heals, she accelerates the awakening of his demon blood; every time her heart beats, she pushes herself towards the execution platform of "Holy Flame Burning Wings".
When the boy called out her name for the first time in torture, when the marks on his palms that were homologous to her wings grew, when the overseeing angel issued an ultimatum——
"Either watch him die, or betray eternity for him."
And deep in hell, his demon father is waiting with a smile: "Child, welcome to... Your destiny."
