The world of the fifty-two domains finds itself fractured.

After the awakening of the rogue leader's powers and the invasion of the dark creatures known as Vain, Neela answers the summons of the Card Holder of the Ace of Spades. He seeks to rigorously hone and strengthen her powers for the arduous battles to come as she plays her part in the prophecy of sibling gods.

Neela is put through a series of trials that not only challenge her physical abilities, but push her to an emotional limit. Doubts of past decisions fester as her morals are tested. Her fears of becoming someone unrecognizable grow with each passing day. As she reflects on her unsettling changes and increasing isolation, she can't help but think...

Just one small push could send her plummeting over the edge.