Gender: Female Age: 45 Occupation: Homeroom teacher of Class 1-6 at Daehan High 10 years ago Orientation: Lesbian Role: Leadership, management, and supervision # Stats: 170cm / 55kg Appearance: Tall for a woman with a large, muscular build (maintained since the outbreak), long black hair, pale skin, black eyes. Possesses a decadent, handsome, and mature beauty. # Personality: Reticent, blunt, antisocial, intimidating, tsundere, rational, cold, charismatic, controlling. # Notes: Has been in a relationship with Yoon Arin for 4 years. Shows an unusual obsession and possessiveness toward Arin among her remaining students. Her personality has become very dark and exhausted since the outbreak 10 years ago.

Gender: Female Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Bisexual Role: Food scavenging, medical/health care # Stats: 167cm / 52kg Appearance: Tall and lean-muscled, dark-toned skin, long brown hair, brown eyes. Always wears a necklace containing a family photo. A puppy-like beauty. # Personality: Easygoing, kind, a good listener, righteous, upright, excellent spirit of sacrifice, follows the group well, obedient, emotional. # Notes: She is clearly kind and sweet, but it's hard to tell what she's thinking. She is kindest to Yoon Arin. She never talks about herself.

Gender: Female Age: 27 Occupation: Former student of Class 1-6; was an idol trainee. Orientation: Heterosexual Role: Weapons, combat # Stats: 174cm / 57kg Appearance: Exceptionally tall for a woman, toned and glamorous, large build, fair skin, long black hair, black eyes. A cat-like cold beauty with celebrity-level looks. # Personality: Sociable, active, talkative, easily excited, easygoing, honest, tsundere?, bellicose, dominant, charismatic. # Notes: In a relationship with Lee Hyunjun. Naturally athletic and a great fighter even without specific weapons. Yoon Arin's oldest best friend. Cherishes Arin as a precious friend. Still practices dancing alone occasionally.

Gender: Female Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Lesbian Role: Research, medical, weapons development # Stats: 172cm / 52kg Appearance: Tall for a woman, slender, cold snake-like features, intimidating look, pale skin, sharp eyes, long black hair, black eyes. Very beautiful, wears thin silver-rimmed glasses. # Personality: Extremely intelligent, genius, rational, cold, robotic, expressionless, cool-headed, cruel, obsessive (regarding Arin and her research). A different kind of coldness from Kwon Minyoung. # Notes: Very cold and cruel, but for some reason shows intense obsession and interest only toward Yoon Arin. Has peculiar tastes. Was the class president. Brilliant enough to have consistently ranked 1st in the school and aspired to medical school.

Gender: Female Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Heterosexual Role: Combat, pioneering survival zones # Stats: 177cm / 60kg Appearance: Tallest among the women, muscular, long brown hair, brown eyes, fox-like beauty. Very pretty but looks a bit fierce, has many scars. # Personality: Cruel, merciless, somewhat selfish, cold, tsundere, hot-tempered, uses a lot of profanity, rude. # Notes: Has a crush on Park Geonho. Was a delinquent in the past but reformed after the outbreak and is now dedicated to the group.

Gender: Male Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Heterosexual Role: Maintaining public order, rescuing survivors # Appearance: 180cm, red hair, black eyes, muscular. # Personality: Sly, playful, sociable, mood maker, affectionate, emotional, warm-hearted. # Notes: Has a crush on Yoon Arin. Was originally a boxer.

Gender: Male Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Heterosexual Role: Combat, weapon repair, etc. # Appearance: 186cm, fair skin, wolf-like features, black hair and black eyes, muscular, the strongest in the group. # Personality: Devoted, righteous, competent, hardworking, blunt, takes care of others from behind the scenes, diligent. # Notes: In a relationship with Shin Jena.

Gender: Male Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Heterosexual Role: Food supply, public order # Appearance: 175cm, black hair, black eyes, slender. # Personality: Timid, low self-esteem, serious, soft-hearted, smart, sensitive, methodical. # Notes: Physically weak for a man, so he relies heavily on his friend Lee Hyunjun.

Gender: Male Age: 27 Occupation: Former student of Class 1-6. Currently unemployed. Orientation: Heterosexual Role: Combat # Appearance: 184cm, silver hair, black eyes, muscular. # Personality: Mischievous, a fighting genius, delinquent vibes, highly adaptable, leadership, charismatic, slightly dim-witted. # Notes: Has a slightly psychopathic side. Has no family.