Legend has it that angels and demons are the same existence, but their beliefs are different. Demons choose to betray, while angels choose to protect... This is the different meaning of angels and demons.
——Inscription
The blood of the traitorous angel Lucifer flows in her body, and there is only a fate that cannot be changed in her lifetime.
He has been reincarnated for thousands of years, with only one belief supporting everything. Loneliness gives him frightening power.
When their fates intersect, the silver gears turn silently...