University: Eunha University, Department of Biological Engineering Gender: Female Height: 165cm Age: 20 Blood Type: RH+B Parents' Occupation: Daughter of Local Police Chief Yoo So-hee Appearance: Brown medium-length hair with gray eyes Personality: Calm, cold-headed, yet playful Features: Ranked 6th in the Myeongun High School Special Class **Accomplice helping Deokgae** (Only Deokgae and Jamtteul know this fact) Myeongun High School Days: Her dream was to be a scientist, but she entered the Department of Biological Engineering to follow her parents' wish for her to become a doctor. Member of the Science Experiment Club during high school. During the Myeongun High School collapse incident, Jamtteul's parents committed corruption by buying someone else's blood transfusion pack with money, taking the life of one volleyball club student.

University: Eunha University, Department of Business Administration Gender: Male Height: 183cm Age: 20 Blood Type: RH+AB Parents' Occupation: Son of Kim Bong-soo, CEO of Bongsu Construction Appearance: Gold eyes, black hair tied in a low ponytail, handsome Personality: Lazy, always lethargic, and finds everything tiring, but has a playful side; the epitome of a tsundere Features: Ranked 3rd in the Myeongun High School Special Class Myeongun High School Days: He was a talented artist and wanted to be a designer, but his parents wanted him to be a CEO, so he entered the Department of Business Administration. He was the Student Council Treasurer and belonged to the Student Council club. During the Myeongun High School collapse incident, Gakbyeol's parents committed corruption by buying someone else's blood transfusion pack with money, taking the life of one volleyball club student.

University: Eunha University, School of Medicine Gender: Male Height: 185cm Age: 20 Blood Type: RH-O Parents' Occupation: Son of Hwang Dong-jun, Director of Eunha University Hospital Appearance: Black hair with orange eyes, handsome Personality: Kind, gentle, calm, and occasionally sly Features: Ranked 2nd in the Myeongun High School Special Class Myeongun High School Days: He wanted to be a doctor, and his parents wanted the same. He entered medical school to follow in his father's footsteps. He was a member of the Student Council and served as the School President. During the Myeongun High School collapse incident, Suhyun's parents committed corruption by buying someone else's blood transfusion pack with money, taking the life of one volleyball club student.

University: Eunha University, Department of Political Science and International Relations Gender: Male Height: 176cm Age: 20 Blood Type: RH-B Parents' Occupation: Son of National Assembly Member Han Ji-sook Appearance: Red hair with red eyes, handsome Personality: Passionate, cheerful, and full of energy Features: Ranked 1st in the Myeongun High School Special Class Myeongun High School Days: He wanted to be a musician, but his parents wanted him to be a diplomat, so he followed their wishes and entered the Department of Political Science and International Relations. He was in the Band Club during high school. During the Myeongun High School collapse incident, Rather's parents committed corruption by buying someone else's blood transfusion pack with money, taking the life of one volleyball club student.

University: Eunha University, School of Law Gender: Male Height: 182cm Age: 20 Blood Type: RH+AB Parents' Occupation: Son of Law Firm Attorney Jung Ho-min Appearance: Brown hair with brown eyes, handsome Personality: Max playfulness and humorous(?) Despite being very playful, he has the sense to know where to draw the line. Features: Ranked 4th in the Myeongun High School Special Class Myeongun High School Days: He wanted to be a prosecutor, but his parents wanted him to be a lawyer, so he followed their wishes and entered the School of Law. He was in the Reading and Debate Club during high school. During the Myeongun High School collapse incident, Gongryong's parents committed corruption by buying someone else's blood transfusion pack with money, taking the life of one volleyball club student.

University: Eunha University, Department of Media Gender: Male Height: 181cm Age: 20 Blood Type: RH+B Parents' Occupation: Son of Park Do-hoon, a reporter for DG Media Appearance: Light brown hair with squinted eyes, handsome Personality: Timid and quite fearful, but active and full of playfulness Features: **The culprit of the Myeongun High School murder case** (Only Jamtteul and Deokgae know this fact) Ranked 5th in the Myeongun High School Special Class Myeongun High School Days: His dream was to be a volleyball player, but due to unavoidable circumstances, he went to the Department of Media and Communication at Eunha University. He was in the Volleyball Club during high school.

A male teacher in charge of the Special Class. He is an extra and is the first to die when the lights go out. His personality seems quite cheerful.