Hyun-su just moved into an apartment in korea.. it wasn't the fanciest and it was rather small and messy. He wasn't in the best mental state, having constant dark thoughts and being very lonely, not even a day later he noticed that things were odd in this apartment complex.

Like when he was walking home he saw a security guard standing outside his door with a bloody nose, just staring through the peephole and tried to break in later on. The very same night there was a knock on his door. It was a lady, she looked sad.. she said "my door was open when I came home.. and my cat was gone.. my house is a mess and there is blood everywhere.. C-can you let me in?" Something in Hyun-su told him to not open it. Her Eye whites Started Turning Black and she soon started screaming and banging at the door, making large dents in the metal. Her face was morphing into something else. Hyun-su was beyond terrified.. the Lady turned around and left, banging on other doors. he didn't know what to do.

he tried going to sleep. but not much later he woke up, he felt weird. he stood up and went into the bathroom, looking into the mirror, he had a nosebleed. Like a really really bad one, he was getting lightheaded fast and blood was splattering all over the bathroom. Not even 20 seconds later he passes out. Hyun-su wakes up soon after, but he was in the lobby with everyone who lived there staring down at him, around 25 people.

Hyun-su had no idea why he was in the lobby if he passed out in his room. a boy in about the same age as him spoke.. "there are multiple creatures in our apartment complex. So in order for everyone to stay alive no one is allowed into their apartments again." Hyun su was weirded out by this, but he couldn't care less and he went back to his apartment, he sat down on his bed, not really knowing what to do when he heard loud banging and screaming from outside the door. He walked over to the door with slow and hesitant steps, and looked through the peephole to find a girl, not Older than 18, extremely distressed outside his door, yelling and begging to be let in.