When you were a kid, do remember those bumps and creaks coming from your closet? Do you remember the monster that lived under your bed? Do you remember him? What if I told you, he, and every monster of those tales, are very, very real. Only, they're much worse.
Seventeen year-old, sailor, Rei, is about to be thrusted into a world that looks and acts the same, but is infested with demons, angels and wicked creatures of every kind.
After an attack on her bus, Rei must decide if she can trust the boy with the narcissistic attitude, glowing sword and flaming green eyes when he tells her she'll be safe with him. But soon none of that really matters when she finds out agents of both sides seem to either want her dead or for...well, dinner.