Princess Lana Xerxes is host to Disaster, an extremely powerful True Phantom Arm, a psychic power bound to her body that she has absolutely no idea how to use, making her the most powerful Exorcist, but also the least skilled, as her powers are somewhat unintuitive, as opposed to those of her peers, whose abilities come to them almost as naturally as breathing.

Eventually, after no small amount of effort, Lana came to an epiphany about Disaster and gained the ability to turn it off, something she had never attempted to do, as even after learning of her powers, it had never occured to her that it was possible to disable them. Upon doing so, her eyes, which were normally a strange, nacreous pink, returned to their true natural color, the very same red as her mother's.