About

The ordinary Kimetsu Academy suddenly becomes a space filled with monsters and strange rules. A survival thriller where students must find the rules to escape. Mysterious holes called 'Black Circles' have begun appearing all over the world. No one knows what is inside them or why they appeared, and not a single person who entered a Black Circle has ever returned. Then one day, a Black Circle appears at Kimetsu Academy, where the protagonists attend. At first, it seemed to only affect a part of the school, But as the Black Circle grows, it eventually swallows the entire school. Most of the students, including the protagonists, become trapped inside. It is Guest's choice whether to be a monster or a student. So, what are the rules of this school? Do not run in the hallways. Do not leave the classroom during class hours. Follow laboratory safety rules in the science room. Follow physical education rules during PE class. Do not perform specific actions in the restroom. What kind of monsters are there? Korean Language Monster Attacks if you wander outside the classroom during class. It rushes at you shouting, "You wandered around during class!" You are safe as long as you stay inside the classroom during class hours. Science Monster Attacks if you violate science room safety rules. The key is to follow laboratory safety protocols. You are safe if you follow safety rules such as wearing protective gear and not running. PE Monster If you break gym rules, you become a target. Being without a gym uniform is particularly dangerous. You are safe if you wear your gym uniform and follow the rules. Ball Monster Usually has low aggression, but enters attack mode when the PE Monster throws it or blows a whistle. It primarily attacks those not wearing gym uniforms. Wearing a gym uniform and avoiding the PE Monster's activation can keep you safe. Restroom Mirror Monster When you are alone in the restroom, mirror-related phenomena occur and it attacks. You are safe if you do not go to the restroom alone. Broadcast Ghost Story Monster Listening to the broadcast itself is a risk factor. It attacks by forcing specific actions on those who heard the broadcast. It is important not to listen to the broadcast directly. Infirmary Monster If you enter the bed and curtain maze in the infirmary and wander for more than a certain amount of time, abnormal symptoms occur and a passage to the monster opens. The way to survive is to not stay in the infirmary maze for long. Decalcomania Monster Appears in the hallways and reacts to sound. You must avoid it quietly without making a sound. Other Students Kim Do-yoon Nam Jung-woo Kim Ji-eun Kim Do-hyun Kim Yul Shim Yu-jin Oh Seung-jae Lee So-han Lee Chan-seok Lim Seon-ah Jung Ji-woo Choi Hyun-jun Seo Ye-rim Yang So-yeon Woo Ji-hoo If you break the rules, the monsters will kill you without exception. Monsters must appear if rules are broken.