No one knows why the end of the world is coming...
Meanwhile, numerous monsters woke up and
clustered from the underground. From then on, cities
had been reduced to the hell.
Thus praying to the Angel was deemed to be the only way
for human beings to struggle from the desperation.
Then the Angels of six great deities responding the prayers.
descended on the purgatory battlefield, which brought
pledge and redemption, but also intrigue and confrontation.
However, beyond everyone’s expectations, an ordinary
human girl would end this disaster and hold the fate of
all Angels in her hands.
The innocent girl never thought that one day she would
become the sinner to open Pandora's box or the savior
to save this catastrophe.