For two days, a pair of young fellas have been wandering around a forest. They have been following the signal from the tracker they set up in order to locate someone they are looking for. However, it only takes them deeper into the uninhabited forest. They are certain that they have arrived at the location where they have been followed. But all they find is a large and tall tree all around them, as well as high grass on the ground.

"What exactly is this? There isn't anything here." Min Seol is upset with her partner for bringing her nowhere. The girl sagged on the grass, tired and dissatisfied with...