With a bus ticket in hand and the hood of a raincoat over her face, Seong Moon gave up, ran away, and told no one. Little did she know that she might never even get the chance to do what she left to do. She might never come back to the world she called home. One wrong turn lands her in Limbo, a completely different realm home to mystical and paranormal creatures of all kinds. A realm that lies in the center of the Land of The Unheard, hovering between Heaven and Hell. A realm that mortal humans like her don't belong in. A realm that she is now trapped in and has to find her way out of, because they are coming for her, and they will kill her when they find her. Unlucky for her, she can't do it alone.