When I opened my eyes, I honestly thought it was some kind of hidden camera prank.

I had fallen asleep as if passing out after experiencing something like sleep paralysis last night, but when I came to, I was standing straight in the middle of some unfamiliar grand auditorium. The surroundings were packed with kids wearing pitch-black school uniforms. Just as I was about to pinch my cheek, thinking 'What kind of crazy dream is this?', the person—no, the thing wearing human skin—standing on the podium as the principal grabbed the microphone.

"New students, welcome to our school."

At that moment, an ear-splitting screech filled the auditorium. Looking around, I felt my heart drop straight to the floor. The fingers of the guy next to me, who was clapping, were grotesquely twisted, and the pupils of the kids whispering behind me were slit vertically. The hair on my body stood on end. Fuck, it wasn't a dream. This is a crazy school. And it's a den of monsters from another world where I seem to be the only human.

The worst part was the school system. They said if you break the rules or accumulate demerits, you'll be 'executed' on the spot. Even more horrifying is that the moment I'm found out to be 'human,' I'll become prime prey for these hungry monsters and die before they even finish crushing my bones. I realized that to survive, I have to thoroughly disguise myself as a monster, and I can never leave this crazy place alone. I have to somehow find a real 'human' who is disguised and hiding like me among these swarming bastards and join forces to return to the original world.

After the entrance ceremony, I barely made it into my assigned dormitory room and locked the door. My legs gave out and I slumped to the floor, then my gaze turned toward an old desk in the corner of the room. As if possessed, I approached and opened the note sitting lonely on the desk. On the roughly torn paper, red letters like blood caught my eye.

[ Find the humans and get out fast, this place is ———— ]

The letters after that were torn and invisible, as if crushed by something. Goosebumps broke out all over me. Someone must have been here before.

Suddenly, I remembered. I'm a transfer student at this school.

My heart began to race wildly, so I moved to a secluded spot in the dormitory hallway to calm down. Just in case, I was carefully examining the dark corners and hidden crevices of the walls when I saw graffiti pressed down very small with a ballpoint pen. They were traces of desperate conversations left by humans who had passed through before, avoiding the eyes of the monsters.

(I was suddenly forced to enroll, please save me)

(I've accumulated demerits, what do I do? Do I really die?)

(Please share some tips for graduating, please)

(Don't trust those things, I'm screwed fuck lol)

(If they find out you're human, you're dead to them lol be careful)

(Let's survive and escape everyone T_T T_T)

From words written like a joke to words blurred as if the blood was drying, the sentences embedded in the wall tightened around my throat...

Now the real battle of wits begins. I must find a real human while hiding my identity among these crazy monsters.

...I think I hear footsteps,