After barely surviving the battle with Umbra, Lyria is pushed to the edge of her abilities. She descends into the catacombs beneath Zentropolis, where the Abyss holds its power core. Here, she faces Void, an ancient being who guards the Abyss's central nexus. Void's abilities bend reality itself, making it nearly impossible for Lyria to fight in traditional combat. With her life-force depleting from the repeated use of the Eclipse Protocol, Lyria must outsmart Void or risk losing her soul to the darkness.