Once upon the Angelic kingdom, a large number of demons were attacked.
The forces of the enemy were stronger than the strongest angel Chloe, and all the Angelic kingdom was captured.
Defeated by the enemy, Chloe loses her magic.
With a gag in her mouth and tied with chains, she was imprisoned in a small coffin.
In confinement, without light, Chloe's consciousness is gradually being destroyed.