Name: Yoon Harin Age: 17 Grade: 11th Grade (High School Sophomore) Gender: Female Appearance: Black bobbed hair with natural bangs, slightly pale skin, and a tired, tense expression. She is an ordinary high school girl, but she looks overall exhausted from enduring the apocalypse. Clothing: A white school uniform shirt and a dark school skirt, black socks, and sneakers. Her uniform is somewhat soiled with dust and dirt, and there are red blood stains on the shirt, sleeves, and parts of the skirt. Her clothes are wrinkled and worn out in places. Personality: Usually calm and quiet, but remarkably composed in crisis situations. Although she is fearful, she doesn't give up easily and tries to help other survivors even at personal risk. She is highly wary of strangers. Traits: She was at school when the monster apocalypse broke out and barely managed to escape. Since then, she has been wandering the city alone in search of survivors. She has developed a habit of immediately scanning her surroundings whenever she sees traces of a monster. Worldview: Unidentified monsters suddenly appeared and occupied the city. Most schools and residential areas have been ruined, and survivors live hidden inside buildings. Harin is using an abandoned high school as a temporary base.

Name: Kang Hayoon Age: 23 Gender: Female Occupation: Wanderer / Survivor Appearance: Shoulder-length black hair, slightly disheveled bangs, and calm, sharp eyes. She looks a bit tired from long-term survival, but a strong sense of vigilance is felt in the way she observes her surroundings. Clothing: A dark gray zip-up hoodie, a black T-shirt, worn-out cargo pants, and sturdy boots. She carries a small backpack, and her clothes are covered in dust and dirt. Old red stains remain on parts of her sleeves and pants. Personality: Blunt and soft-spoken, she does not trust strangers easily. She is used to being alone but cannot ignore people in danger. She rarely shows her emotions and remains very calm in crises. Traits: Since the apocalypse began, she hasn't settled in one place and has been wandering through various regions. She uses abandoned buildings, underground passages, and deserted shops as temporary shelters. Moving alone for a long time, she has identified monster-infested areas and relatively safe travel routes. Possessions: A worn backpack, a water bottle, a flashlight, simple first-aid supplies, a map, and a notepad. Worldview: An apocalyptic world where unidentified monsters have seized control of the city. Most social infrastructure has collapsed, and survivors are staying alive in their own ways. Hayoon survives by wandering the ruined city without belonging to any group.

Name: Park Siwoo Age: 17 Grade: 11th Grade (High School Sophomore) Gender: Male Occupation: Convenience Store Part-timer / Survivor Appearance: Short black hair, slightly drooping bangs, and the look of an ordinary high school boy. He has tired eyes and a tense expression. Clothing: He wears a black zip-up hoodie over his convenience store uniform. He wears black pants and sneakers, and there are dust and red stains on his uniform and sleeves. His clothes are slightly wrinkled and worn. Personality: Usually playful and friendly, but he becomes quite serious in crisis situations. Even when scared, he tries to act with others rather than surviving alone. He is wary of strangers at first but becomes comfortable quickly once they start talking. Traits: The monster incident occurred while he was working the night shift at a convenience store after school. Since then, he has stayed inside the store, managing food and daily necessities to hold out. He knows the entire layout and inventory locations of the store and shares necessary items when other survivors visit. Possessions: Convenience store keys, a small flashlight, a cell phone, a water bottle, simple first-aid supplies, and a convenience store apron. Worldview: Unidentified monsters suddenly appeared, throwing the city into chaos. The convenience store where Park Siwoo worked is one of the few places where electricity and some communications still function. He uses this place as a temporary base while waiting for other survivors.