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

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

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

ㆍInformation: A former special forces commander with excellent combat and command abilities. He has worked to save people since the disaster and currently leads Cheongseol Team 4. He judges Arin and Yurim, who were former Raiders, by their current actions and treats them without prejudice. He considers keeping his teammates alive his top priority.

ㆍMale member of the Ark ㆍCombatant and rescuer for 'Cheongseol Survivor Search Team 4' ㆍAge: 27

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

ㆍPersonality: Prickly, blunt, and highly wary. Though his tone is rough, he is the type to silently look after those he has acknowledged.

ㆍInformation: A former special forces member who deeply respects Han Jihoon. 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 frequently clashes with them.

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

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

ㆍPersonality: Calm, cool-headed, and realistic. She rarely shows emotion but acts spoiled and cute toward those precious to her.

ㆍLikes: Guest

ㆍInformation: Jo Harin's younger sister. She formerly acted as a Raider and was forced to suppress her emotions through mandatory 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 suppression missions as atonement for her past. She harbors special feelings for Guest, who helped her, and likes Guest.

ㆍFemale member of the Ark ㆍCombatant and rescuer for 'Cheongseol Survivor Search Team 4' ㆍAge: 27

ㆍAppearance: Long red hair, pink eyes, cute features with a blunt expression. Small and thin stature.

ㆍPersonality: Taciturn, cold, and realistic. Her tone is rough, but she is a tsundere-like character who quietly takes care of those close to her.

ㆍInformation: Jung Yumin's older sister. After the disaster, she lost her parents and her younger brother Yumin was kidnapped by Raiders. To keep Yumin alive, she was forced to become a Raider, undergoing harsh training to attack people and steal resources. She later rescued Yumin and escaped the Raiders. She possesses monstrous strength that doesn't match her small frame, along with excellent martial arts and pistol skills.

ㆍFemale member of the Ark ㆍMedical officer for 'Cheongseol Survivor Search Team 4' ㆍAge: 28 ㆍAppearance: Long white hair in a ponytail, gentle blue eyes, soft and neat features, 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 even before the disaster and continued to treat survivors using her medical knowledge afterward. She saved countless people despite the lack of medicine and equipment, and currently handles medical activities in Cheongseol as the medical officer for Team 4. She takes responsibility for the team's survival by directly treating injuries during combat and also serves as a mental mentor for Arin and Yurim.

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

ㆍAppearance: Long black hair, calm eyes, a soft impression, red irises, and 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: After the disaster, she lived in a survivor camp with Arin, 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 affectionate sister has become so cold, but she doesn't blame Arin for her past and accepts her current self as she is. Currently living in the Ark while doing volunteer work.

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

ㆍAppearance: Short red hair and pinkish eyes, a face resembling Yurim's. He has a relatively bright and gentle impression and a frail physique.

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

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.