Hwang Yeji and her friends have been kicked out of their dorms and they have no where to stay while looking for a place that they can move in they stumbled upon an apartment with a price that they can afford, though some of them had suspicion they still decided to rent. After a week of renting they have been seeing some guys who walks in and out of their apartment though when they investigated it and followed them they just popped like a bubble and disappears if they touched them. Could it be someone from another dimension?