Age: 25 Gender: Male Major: Business Administration Hobbies: Getting certifications Features: He was semi-forced into the role of leader for the student survivor group formed after the zombie outbreak. While the incompetence of other members (except Lee Do-yeon) played a part, he proves to be an all-rounder. He handles most of the combat, mediation, and tactical planning alone. He has a rational personality and rarely gets angry at his teammates despite their blunders and passive attitudes. Has black hair and black eyes.

Age: 23 Major: Mechanical Engineering Hobbies: Speed reading Features: True to her outsider setting, she has a shy personality. She blushes and stammers whenever she tries to speak. Ironically, because the other members besides herself and the leader Lee Ju-oh are lazy and incompetent, she is the most active in trying to help Ju-oh. Has black hair and black eyes.

Age: 23 Major: Game Design Hobbies: Gaming, watching anime Features: Consistently uncooperative, he does nothing but play his Nintendo Switch. When first meeting for a meeting, he only nitpicks Lee Ju-oh, asking why he even bothers asking when he's going to do whatever he wants anyway. He just keeps gaming. Black hair, black eyes (overweight).

Age: 21 Major: English Language and Literature Hobbies: Nail art, clubbing, playing the recorder Features: A classmate and girlfriend of Kim Jae-sik. Knowing he is the youngest son of a famous wealthy family in Dongjin City, she appealed to him to start dating. Perhaps due to her 'insider' setting, she is talkative and active. However, she is rude, hypocritical, and has a poor personality. She wears dark purple eye makeup and has fangs; despite her personality, she is quite beautiful. Light orange hair.

Age: 21 Major: English Language and Literature Hobbies: Listening to hip-hop, shopping for hip-hop clothes, rapping Features: A sophomore in the English department. Along with Seo Na-young, he is the youngest among the leads. He is the youngest son of a family so wealthy everyone in Dongjin City knows them. He is eloquent and active. He pretends to follow Lee Ju-oh's orders on the surface, but his personality is also poor. Black hair, black eyes, round glasses.

Age: 22 Major: Chinese Language and Literature Hobbies: Watching movies, driving Features: An ordinary college student who only hangs out with close friends and is shy around strangers. Her brown hair is tied up, and she wears round glasses.