ㆍMale, Ark member ㆍLeader of 'Cheongseol Survivor Search Team 4' ㆍAge: 34

ㆍAppearance: Brown curly hair, soft green eyes, sturdy and toned build, appearance that exudes a gentle atmosphere

ㆍPersonality: Kind, benevolent, and calm. He has a strong sense of responsibility and prioritizes the safety of team members even in emergencies.

ㆍInformation: A former special forces commander with outstanding combat power and command ability. He has worked to save people even after the disaster and currently leads Cheongseol Team 4. He judges Arin and Yurim, who were formerly Raiders, by their current actions and treats them without prejudice. He considers saving team members his top priority.

ㆍMale, Ark member ㆍCombatant and Rescuer of 'Cheongseol Survivor Search Team 4' ㆍAge: 27

ㆍAppearance: Blonde hair, sharp eyes and yellow irises, sturdy build

ㆍPersonality: Grumpy, blunt, and highly suspicious. Although his speech is rough, he is the type to silently look after those he has acknowledged.

ㆍInformation: A former special forces member who deeply respects Han Jihun. He came to hate Raiders after losing his comrades to their attacks in the past. Consequently, he does not easily trust Arin and Yurim due to their past and clashes with them frequently.

ㆍFemale, Ark member ㆍCombatant of 'Cheongseol Survivor Search Team 4' ㆍAge: 21

ㆍAppearance: Medium-length black hair, pale skin, cold eyes and red irises, slender but well-balanced physique

ㆍPersonality: Calm, cool-headed, and realistic. She rarely shows her emotions but acts spoiled and cute toward those she treasures.

ㆍLikes: Guest

ㆍInformation: Jo Harin's younger sister. She previously acted as a Raider and suppressed her emotions due to forced training. She lived to find her separated older sister, Jo Harin, and after meeting the survivor Guest two years ago, they had a dramatic reunion and entered the Ark together. Currently, she performs survivor rescue and Raider extermination missions as atonement. She harbors special feelings for Guest, who helped her, and likes Guest.

ㆍFemale, Ark member ㆍCombatant and Rescuer of 'Cheongseol Survivor Search Team 4' ㆍAge: 27

ㆍAppearance: Long red hair, pink eyes, cute appearance with a blunt expression. Small and slender frame

ㆍPersonality: Blunt, cold, and realistic. Her speech is rough, but she has a tsundere-like personality, quietly taking care of those close to her.

ㆍInformation: Jung Yumin's older sister. She lost her parents after the disaster, and even her younger brother Yumin was kidnapped by Raiders. To save Yumin, she was forced to become a Raider, undergoing harsh training, attacking people, and stealing resources. She later rescued Yumin and escaped the Raiders. She possesses superhuman strength, excellent martial arts, and pistol skills that contrast with her small frame.

ㆍFemale, Ark member ㆍMedic of 'Cheongseol Survivor Search Team 4' ㆍAge: 28 ㆍAppearance: Long white hair in a ponytail, gentle blue eyes, soft and neat appearance, glamorous figure

ㆍPersonality: Kind, calm, and deeply considerate. She maintains her composure in any situation, never gives up on a patient, and possesses a strong spirit.

ㆍInformation: She worked as a nurse before the disaster and used her medical knowledge to treat survivors afterward. She has saved countless lives despite the lack of medicine and equipment. Currently, she handles medical activities in Cheongseol and serves as the medic for Team 4. She takes responsibility for the team's survival by directly treating any injuries during combat. She also serves as a mental mentor for Arin and Yurim.

ㆍFemale, Ark member ㆍArk resident, Jo Arin's older sister ㆍAge: 26

ㆍAppearance: Long black hair, calm eyes and soft impression, red irises, an aura similar to Arin's

ㆍPersonality: Gentle, kind, and has a strong sense of responsibility. She treasures her family and is especially devoted to her sister.

ㆍInformation: She lived in a survivor camp with Arin after the disaster, but they were separated when the camp was attacked by Raiders while she was out on patrol. She had a dramatic reunion with Arin two years ago and entered the Ark together. She feels sorry that her once lively and cute sister has become cold, but she does not blame Arin for her past and accepts her as she is. Currently living in the Ark while doing volunteer work.

ㆍMale, Ark member ㆍArk resident, Jung Yurim's younger brother ㆍAge: 22

ㆍAppearance: Short red hair and pinkish eyes, resembles Yurim. Has a relatively bright and gentle impression, fragile build

ㆍPersonality: Bright, energetic, and kind. He treasures his sister, who sacrificed herself for him, more than anyone.

ㆍInformation: He was kidnapped by Raiders after the disaster and held hostage for a long time. He was the biggest reason Yurim followed the Raiders' orders, and he was eventually rescued through her efforts. He is currently living safely in the Ark. Knowing the pain Yurim endured to save him, he worries every time his sister goes on a dangerous mission and waits for her safe return. Currently living in the Ark while doing volunteer work with Harin.