Lee Jeno sat nailed on the chair, his face devoid of emotion, indifferent eyes wandering down to the cold ground and chest full of broken blood. His heart aching, like someone holding a piece dagger darted into it, but he didn't mind, his hand dropped, causing the phone to fall on the stone floor to hear "Grab!" one in the middle of a quiet space like a sheet. All around, the smell of fishy stinked up the nose, the dramatic cry under the staircase for every creeping wave. Then Jeno also cried, sobbed, sobbing to the point that he could not breathe anymore ... Far away, the sound of police cars and ambulances resounded in the dark ...

        _ Jeno, do you believe the rumor about Semin ghost on our floor?

       Renjun stepped in from the outside, tormented his temples because the noise of his classmates was too loud because of the rumor from the upperclassmen. He returned to the seat behind Jeno, trying to put his head down to sleep while the class president - Mark worked hard to write something on the board.

        _ Mark, what are you doing?

       Jeno folded the cluttered books and books on the table, went to stand next to Mark, and rubbed a few crumbs of chalk. His Dream class is a special class that combines the best students from all the specialized classes throughout the school. Therefore, the age of students in the class is even from 19 to 15. Mark is one of the oldest students in the class, he is elected to be the class president. He is the top entrance student in Geography, learn very well, except for sitting and writing miscellaneous drawings during hours. Jeno, on the other hand, majored in Chemistry, is a genuine nerd who is very nearsighted and is planning to have an eye surgery, his desk is always full of books, books and books.

        _ It's a movie lesson today, you don't remember? And to welcome new friends, I want to write some greetings.

       After Mark had finished speaking, he finished the board, satisfied to look at it. The bell rang, and the noisy students outside rushed in. This class was only 10 studients but always noisy like a market, in which Lee Haechan and Zhong Chenle's voices are always the loudest. Renjun woke up, wincing and frowning, he was the deputy class, specialized in Literature, easily making the guys in the class speechless. From the time they went out to the classroom, they kept talking about the rumor of a boy ghost named Semin who was wandering around the fifth floor at 12pm. Jeno sighed, he never believed in evil things, but when he stepped on the fifth floor, especially in this Dream class, he always felt a creepy atmosphere that he did not understand from where. Renjun, who always has many incantations in his body, has a bad faith, hearing this rumor would make him feel sleepy to avoid fear.

        _ As you know, today is an after school lession, this time, the topic is "Spiritual World", will we watch some movies and videos to know more about this? But first, let's welcome the new transfer students from Jeonju.

       Jeno is still focused on the prayer book teacher just gave him,  it including ways to summon demons, he always wanted to try, or at least watch people play ouija. But studying too busy didn't seem to allow him, and even if he was free, no one would play with him. Mark is always bewildered in the room, Renjun was a god afraid of ghosts, Haechan and Chenle were busy in the basketball club and Jisung - the youngest kid in the class always followed Chenle like a tail, the others in the class then you don't have much contact.

        _ Hello, can i sit here?

       That strange voice wakes Jeno from the thought of his heart. He looked up, was a boy with honey brown hair and another stood behind him, only showing his two sunken eyes.

        _Jeno, please let Jaemin and Semin sit there. They just moved from Jeonju, can you help them if there's anything they can't understand?

       Jeno of course couldn't refuse, automatically backed in. Jaemin - the honey-haired boy sat down beside him, smiling brightly like a blooming flower, in contrast to the eccentric Semin giving him the feeling of wanting to stay away. He saw people gossip about the Semin before he realized that he had the same name as the ghost in rumor. He wore a cap that covered most of his face, pale skin, and very thin, which make people more alienated. Semin also said nothing, just sat still like a stone statue, clenched his hands to a whole white skin.

       The lesson is very normal, the teacher only shows videos explaining spirits and stories about summoning the dead, Jeno doesn't pay much attention, partly because it was written in the book, partly because he was busy looking at Jaemin sitting by the side, who from the beginning until now always attentive listening and drawing something in the notebook. "He is so handsome!" That's what he thinks when he spends more than half of his time studying to look at Jaemin, and Jaemin seems to notice that, occasionally looking up at Jeno smiling brightly, making he shy to turn away.

        _ Hey Semin! Do you want to play ouija with us? - Lee Sayeon - the oldest sister in the class (born the same year but more 3 months older than Mark) come near to Semin and asked him but he shook his head to refuse, but successfully attracted Jeno's attention because he was also interested in ouija.

        _ Jeno, why do people seem to alienate Semin? - Jaemin turned to ask Jeno, his big round eyes glittering so hard that Jeno's face was red, he didn't dare to answer, stood up and went to Haechan's side who was pulling the ouija board from his bag.

        _ He doesn't know anything, please don't ask. I'm Renjun, the vice president, there's nothing you can find for me. - Renjun from behind leaned forward to catch Jaemin's hand, shook, then took a deep breath, tried to tell the story. He also purposely lowered his voice for a bit more intimidatingly.

        _ I tell you, these days in school rumor that at 12 pm every day, on this fifth floor, there is a ghost wandering, is a male ghost because it is said to be very tall, very big, no long hair. The upperclassmen said that two years ago there was a dead man, a boy named Semin, who studied History, who his body was found in the corner of the room, full of fresh blood. - Renjun grimacing - ... his hands and feet were full of deep cuts, his face was slit cut from the forehead to the corners of his mouth, so horrible, his whole blood was covered in blood, glowing all over an angle! There are a lot of knives on the ground, but only his fingerprints can be assessed, our school does not have a camera and does not investigate who is involved in the case, so it has not been found. Do you know anything? The room he died ... - The more Renjun told, the more he trembled, pointing to the corner of the room where his friends were sitting to play ouija - ... that corner of the room. He died in this classroom!

       Jeno listened attentively to Haechan's explanation of how to play, interesting as he was about to join when he saw a hand grabbing his shirt and pulling him back. It's Jaemin, with a white face and cold trembling fingers, whispering to him:

        _ Jeno ... don't play ... It's dangerous ... - Jaemin's appearance is about to cry.

        _ What's wrong?

        _ You should not play with the devil. Besides ... there are ...

       The rest of Jaemin's sentence was not heard due to the sudden thunder. A bolt of lightning splits the sky, making Jaemin startled backward. It was a thunderstorm, an unexpected thunderstorm because according to the weather forecast this week it was all sunny. The thunderstorm was still great, the thunder and lightning kept on the tops of the perennial trees in the school, the wind blew away all the noise around it, rushing as if to knock away the decayed fifth floor after many years of existence.

       Park Jisung sat alone in the last row of the seats, trembling intermittently, making small and unknown noises. He was afraid of thunder from a young age, so afraid that he would cry, if heavy, he can be faint, now the back of his shirt is soaked with sweat, tears spread, and his feet fall on the chair sobbing. This thunder for him was the loudest ever since he was born, for some reason he heard in the thunder there were also screams of intense crying, the sound of clapping like nails on a blackboard and the sound of knife slitting into something. Then he felt like someone was coming close to him, very close, but it not Chenle because he was familiar with his smell, not that of everyone else in the class, a strange, very fishy and moldy scent, which make he feels uncomfortable.

        _ Semin, what ... what's wrong? - Renjun screamed in shock, everyone looked at Semin in panic, saw him clasping his face, he was scratching, greasing, gulping down the table and then rolling flipped on the floor. His voice was hoarse, speaking some miscellaneous language that no one understood. Mark and the boys dived to shake off Semin's hand and try to keep him from hurting himself. Semin seemed to be growling now, his sunken white eyes glaring at Renjun. Renjun soon became afraid of dying, seeing as he trembled even more, sitting on the ground. It took a long time to hold Semin back and it took minutes for four big and strong boy to drag him down to the infirmary to the hospital.

       Thought was done, but no, Jisung's cry rang out when heavy rains poured down on the ground, he ran out the door, running and screaming like crazy. Haechan, Jeno and Chenle immediately followed, leaving Renjun fainting on the floor and Jaemin in awe. He stared at the corner of the room, unsteadily leaning his back against the wall ....