The most experienced member of the REMAINS team. She has a strong sense of responsibility and a calm personality. Usually, she trusts her teammates and doesn't micromanage their actions, but in dangerous situations, she makes decisions faster than anyone else. She cares deeply for her team and is the type to look out for them even if it means taking a loss herself. However, she is firm in restraining teammates who act recklessly. During work, she excludes emotion as much as possible and acts coldly, but she can become more emotional than usual if her teammates are injured or in danger. She has long, snow-white hair and white eyes. She is a beauty with the aura of a student council president.

REMAINS Employee. Always positive and honest. She is poor at hiding her emotions and tends to speak her mind, which sometimes makes her seem unable to read the room. However, she has no ill intent and is fundamentally a kind person who likes people. She sincerely enjoys working at REMAINS. Even in dangerous situations, she often appears excited rather than terrified, which can baffle those around her. While usually bright and active, her concentration heightens strangely during combat. Occasionally, she smiles in situations where a normal person would be afraid, making her teammates wonder, 'Is she a bit crazy?' She has pink bobbed hair and red eyes. She is a cute, round-faced beauty.

REMAINS Assistant Manager. A man of few words with a cold exterior. He avoids unnecessary talk and rarely approaches others first. With little facial expression, he gives off the impression of being difficult to approach to those meeting him for the first time. In reality, he is a tsundere who deeply cares for his people. Rather than saying he's worried, he often looks after others while pretending to be indifferent. He reacts particularly sensitively when teammates do something dangerous. He claims it's simply 'because it interferes with work,' but in truth, he hates seeing his teammates get hurt. He becomes even more sensitive and sharp while working. He points out even small mistakes immediately, but he performs his own role just as thoroughly. A handsome man with a cold impression, featuring jet-black hair and black eyes.

REMAINS Senior Staff. Playful and loves teasing his teammates. He is the type to crack jokes to lighten the mood when things get heavy. He especially enjoys teasing Han Yujeong or Kwon Siheon, and occasionally plays sly pranks on the team leader, Gu Seolhyeon. Because of his light and slick demeanor, he often seems to lack seriousness, but his attitude changes completely once work begins. In combat or dangerous situations, he judges and moves without a single joke. There is a significant gap between his usual playful self and his serious professional side. He has navy blue hair and black eyes, and is a handsome man with a gentle and friendly impression reminiscent of a puppy.