_ Jaemin, are you here? Sit down. What's wrong with your leg? - Renjun saw Jaemin limping into the classroom, immediately ran over to help him sit down, and noticed that Semin behind him was glaring at him under his tattered black cap, making him shiver a little. Jaemin didn't answer, looked tired and sluggish, gently sat down, Renjun noticed that he had a slight frown, his eyes were dark, his hair was a bit messy, his lips were pale, his skin was different than before, become more and more white. Jaemin's head is on the table, his breath is thin, his whole body is as soft as noodles, Renjun sees his bruised wrists peeking out from under the ash gray long-sleeved shirt, somehow looking at Semin's hands. Semin reached out and pulled Jaemin's sleeve to cover his entire arm, then pulled out a book from his bag and read it, while sitting back away from Jaemin.

        _ Jaemin, are you here? If you're tired, you can take my seat, next to a bookshelf you can lean on. - Jeno also just walked into class, Jaemin heard Jeno's voice immediately sat up, gave a wry smile, Jeno slowly helped him to sit back to his seat, while himself sitting between Jaemin and Semin was shooting eyes cold towards him. Jeno has noticed the way Semin looks at him since yesterday, but that look always confuses and amazes him, because it's so full of hate and hatred that Jeno doesn't understand what he did to him to get it back. Jaemin just sat at Jeno but his smile also disappeared, leaning his head against the bookshelf, eyes closed, his whole body seemed to be shaking slightly. It's not cold, but Jeno feels Jaemin's coldness all over his body and his arms are tightly wrapped around himself. He took off his uniform shirt, covered him, and pulled another shirt from his bag, rolled up into a small pillow, and rested it under his nodding head by the bookshelf. The first period was elective, the teacher didn't come to class, Jaemin was sick again so he must be tired, let him rest a bit. Semin witnessed Jeno's action, lowering his face to the page of the book, his hands clenched into fists, as if he could break the pen in his hand.

       Renjun and Mark went down to the principal's room to get a copy of the new class activity announcement, Haechan kept dialing the phone from the moment he entered the class until now, and Chenle and Jisung sat at the end of the table chatting quietly. The students realized that the two brothers Na who had returned to school so they were no longer as noisy as the previous days, only whispering loudly in each other's ears. The quiet atmosphere went through a class, recess time the whole class rushed out, only Jeno-nerd and Haechan-still-plugged-in-phone-from the beginning of class-to-time with two brothers Na. Jaemin who was sleeping suddenly woke up, wide-eyed looking around, both hands clutching his shirt, sweat beading on his forehead.

        _ Jaemin, did you have a nightmare? Are you tired? - Jeno took off his glasses to rub his eyes to relieve fatigue, picked up his shirt that had fallen to the ground, worriedly asked his friend who was gasping for breath. At this moment, outside the classroom door appeared a very tall girl, with a red badge on her chest - symbolizing the school's 58th class. The older sister poked her head into the classroom, waving at Haechan. She and Haechan ran downstairs, before leaving without forgetting to look at Semin and Jaemin, smirking. Semin was a little stunned, and immediately left, ran out and peered down from above to see the two people hurrying down the schoolyard.

___________________

        _ MinAh - ssi, what do you think? - Haechan pulled MinAh to sit down on a stone bench out of sight in the schoolyard, pulled out a small notebook and pen from her jacket to prepare to take notes.

        _ It's exactly that face, the guy with the hat I can't see clearly, but the brown haired guy really looks like Semin two years ago, although he looks a bit thinner.

        _ His name is Na Jaemin, Na Semin's twin brother, the guy in black, I asked you to see it for me. But are you really Semin's Energy classmate back then, I thought all the students in that class had already transferred out, that's why room 5-1 changed into our new Dream class.

       MinAh took out a crumpled piece of paper from her breast pocket, opened it, inside was MinAh's photo and the information was written:

Kim Min Ah:

Energy class, k58, Neo School.

Underneath there is also the school's official seal, which is proof that she is really a student of Class 58 Energy with Na Semin who was horribly murdered.

        _ Not all, but most of it, I and another female friend are still at the school, changed by the principal to another class. I'm the student of class 58 of Energy class, I'm not fooling you. I am confident that I hold the most information about Semin today that you can find, in the past, I used to talk to Semin a lot. Oh, I'm gone to class, I'll text you later if I have anything to say.

       MinAh heard the bell ring and hurriedly left. Haechan blinked once and saw her disappear, looking left and right, there was no sign of her anywhere, she looked like a ghost.

__________________________

                    Donghyuck sent a message:

Lee Donghyuck:

MinAh - ssi, you said there was one more person who also stayed at the school after Semin was killed right? How is she now?

Kim Min Ah:

Well her name is Cho Noah, she passed away last June from a car accident. Noah was the closest to Semin back then, when Semin died she was very sad. Well, I suddenly remembered something I wanted to tell you, about Semin's younger brother in the past.

Lee Donghyuck:

What's up, noona? I remember finding out that Na Semin had a twin brother named Na Jaemin in the past, but it seems that the two brothers didn't study together, right? Because I looked on the school's website, I couldn't find any information about Na Jaemin, class 58.

Kim Min Ah:

Of course not, Semin told me in the past that he has a very cute and beautiful brother, but has multiple personality disorder and cannot attend school regularly, he has to be treated at home. I did not see Jaemin on the day of Semin's funeral, I heard that he was hospitalized that day. Hearing you say today that the brown-haired boy is also named Jaemin, I just remembered, it's also a bit creepy. Coincidences like this are really scary. Information about Semin now for some reason is disappearing, so it's not easy to find clearly, where did you find information about Semin's case the other day?

Lee Donghyuck:

I bought it from a secret website. Noona, what kind of person was Semin at that time?

Kim Min Ah:

He's very handsome, his smile is also beautiful, just look at that brown-haired kid today, no matter how he smiles, Semin must be too. Semin was very kind, active, and cheerful, so at that time he was liked by many people, both boys and girls loved him. However, it ended up being such a terrible thing.... Donghyuck, I ask you, do you believe in the resurrection of corpses from the grave, and can still live like a real person?

Lee Donghyuck:

It sounds so unbelievable. Why are you asking me that?

Kim Min Ah:

Oh sorry, I'm reading a horror story, just asking for fun. I have something to do, I'm off first.

Lee Donghyuck:

Yes, bye bye noona.

__________________________

        _ Jaemin is back? Are you tired? - Jaehyun helped Jaemin, who was walking lazily, sat down on a chair, pouring him a glass of water.

        _ I do not drink, pour away! - Jaemin said in a low voice, staring at Semin who was sitting outside in the living room, his eyes bloodshot, got up, picked up his bag and went upstairs, leaving Jaehyun looking down sadly to clean the table and glass of water.

       Semin also went upstairs, threw his bag on his bed, then entered Jaemin's room, closing the door. He looked at the figure sitting on the bed with his back to him, and asked in a low voice, not walking near him at all:

        _ Jaemin, is that you? - in response to him was the silence that made Semin's neck cold, he saw that Jaemin's wrist had no incision, silently gulped. Instinct told Semin to take out a large needle from his pocket, clutching it in one hand, and holding the doorknob in the other hand, stepping back.

        _ No, it's me, you bastard, you dared to do that to Jaemin yesterday, I have to skewer you! - Jaemin sitting on the bed suddenly shivered, screamed, turned to face Semin, sharp eyes, angry look, took a knife in his hand and stabbed a big teddy bear next to the bed. approached where Semin was afraid to step back.

       Semin fell to the floor, panicking as Jaemin approached him with a knife in hand, but only a few steps away, he bent over, coughed, and the knife fell to the floor right next to Semin's feet. Jaemin coughed to lie on the ground, his hands scratching the floor, bright red blood flowing from his lips. Semin's face turned pale, crawling to hug Jaemin's painful face, caress Jaemin's back and chest. A few seconds later he stopped coughing, but sat up and hugged Semin's hand tightly.

        _ Big brother, Nana is dreaming of those scary sisters again, Nana is so scared, Nana wants to eat candy, wants to eat bear candy. Big brother buy it for Nana, Nana will sleep better. Nana promised to be good when finished eating, and wouldn't let them bother her brother again - to Semin's extreme shock, Jaemin pouted and smiled like a child, holding his hand and coaxing him, his eyes glittering with tears. Semin's mouth was still wide open and gently patted the head of the person in front of him, as soon as he saw him fall down again, he jumped back in surprise. The thick lashes parted again, but this time in a dull, groaning voice:

        _ Why you save me, for what? Just let me die, I'm too tired to live. Let me die, oh my god that guy hurt me so bad, my god, my butt hurts, my hands hurt, I'm so angry. Give me a rope, I want to hang me, give me a gun, give me a shot to end my life, or else just slash me. - Jaemin sat up, frowned, raised his hand to squeeze his neck, struggled on the floor, his eyes flicked over the knife at Semin's feet, rushed to pick up the knife and cut a line through his little finger, looking at the blood flow to foolishness. He lay down, then sat up like a crazy robot, crying like rain and wind, screaming and crying terribly, crawling to Semin who was extremely scared, reaching out his hand to push him against the big wall, crying until his face turned purple.

        _ Na Semin, I'm in pain, stay away from me, get out,... you hurt, you hurt me, I don't want, don't take off my shirt, my shirt, my pants, stay away, stay away. Come out, go and die. I'm in pain, eager... pain... eager... - Jaemin suddenly stopped crying, eyes widening, fell on Semin's body, in his hand, a strong smell of blood rose up. Semin saw his brother's wrist starting to make incisions, panicked and wanted to hug him, but suddenly felt something very sharp and cold under his stomach, looked down and saw a sharp knife pointed straight into his stomach just a thin layer away.

        _ Jae...Jaemin, what do you want to do...?

        _ Wow, this blood, Na Semin, have you seen it? Blood is so beautiful, I really want to take a bath in a pool of blood, a bath full of hot and fresh blood, make a lamp with my fingers too, I want to find beautiful hands, Kim Moonsuk has bad hands like a dog , makes me not interested at all, hands like Cho Noah is better, beautiful and slim, but I dropped it in the water pipe, what a pity. Wow Jaeminie's blood is delicious.

       Jaemin put the knife to Semin's neck and laughed, licking the blood on his little finger that had just been cut, howling in delight, his eyes red and devilish. Immediately, he passed out helplessly and collapsed on the floor. Semin rushed over to hug Jaemin in his arms, stroking the loose curls of sweaty hair on his forehead, but at this moment, a thin arm grabbed his hand and pushed it away. Jaemin opened his eyes heavily, pushed Semin away, propped himself up, and slowly followed the railing down the stairs, leaving Semin sitting on the ground. A shadow suddenly appeared behind him, smiled and disappeared.

        _ Jaehyun hyung, I'm hungry, I want to eat. - Jaehyun saw Jaemin walking limply from the top down, blood sticking to the corner of his lips, his hands were also bleeding, his eyes were red, he ran to hug him tightly, kissed his messy hair, eyes slowly straw dripping water.

        _ Okay, food is here... Jaemin, are they coming again? - Jaemin buried his face in his brother's warm chest, his whole body trembled and nodded, his breath becoming thin as if it could be blown off by the wind. Jaehyun didn't say anything more, just hugged Jaemin tighter in his arms, warming up the cold body of the younger brother he loved the most. Semin watched the two of them from upstairs, pulled a razor blade from his sleeve, cut a long line on his bicep, then turned and walked into his room, slamming the door.

_____________________________

        Renjun walked slowly on the 5th floor stairs of the school, glanced around, entered the Dream class, suddenly realized that there was someone in the corner of the room....