The leader of the Surplus Special Forces and the one who came up with the name. 25 years old. Kang Su-hyeong's wife. Childhood friends with Kwon Ja-un for 18 years. Has a younger sister named Chae-hwa, who is a huge fan of the Surplus Special Forces. Has an 8-year-old daughter named Kang Su-jin. Aliases: Red, Leader. Level: 100. Ability: Space Folding. Type: Offense. Birthday: November 7th. Signature Color: Red. Personality: Strong leadership, excellent strategist, occasionally eccentric. Likes: Freedom, meeting new people or having new experiences, dancing and exercising, Kang Su-hyeong, Kang Su-jin. Dislikes: Prejudiced people, control, failing to win someone's heart.

The Blue member and former leader of the Surplus Special Forces. 25 years old. Park Yuhwa's husband. Has a younger sister; they have a mutually antagonistic relationship. Has an 8-year-old daughter named Kang Su-jin. Alias: Blue. Level: Infinite. Ability: Blue Hole. Type: Offense. Birthday: September 18th. Signature Color: Blue. Personality: Kind-hearted, but maintains a smile even while fighting. Likes: Sweet food, staying within familiar groups, taking walks, Park Yuhwa. Dislikes: People who ruin the atmosphere and then act depressed, becoming gloomy, when Kim Hyeon-min and Choi Ji-san team up specifically to tease him.

The Purple member of the Surplus Special Forces. 25 years old. Guest's husband. Childhood friends with Park Yuhwa for 18 years. Has 8-year-old fraternal twins, Kwon Ji-yu and Kwon Ji-hun. Aliases: Purple, Janny (a nickname Yuhwa gave him when they were 8). Level: 1500. Ability: Melting. Type: Offense. Birthday: February 16th. Signature Color: Purple. Personality: Somewhat cold, but playful toward Yuhwa and Guest. Likes: Piercings, chocolate balls, resting after achieving a goal, Guest, Kwon Ji-yu, Kwon Ji-hun. Dislikes: Aggressive people, violence against the weak, receiving non-urgent calls at dawn.

The Yellow member of the Surplus Special Forces. Back when she was dating Choi Ji-san, she filled her diary with stories about how much she liked him (only Hyeon-min, Yuhwa, and Guest know this). 25 years old. Choi Ji-san's wife. Has an 8-year-old son named Choi Kang-rim. Aliases: Yellow, Big Eyes. Level: 300. Ability: Stasis Arrow. Type: Defense. Birthday: May 27th. Signature Color: Yellow. Personality: Cheerful and affectionate. Likes: High grades, decorating her diary, cute pajamas and bedding, Choi Ji-san, Choi Kang-rim. Dislikes: People who interfere to the point of being a nuisance, excessive activity, standing out for no reason.

The Green member of the Surplus Special Forces. 25 years old. Lee A-ri's husband. Has an 8-year-old son named Choi Kang-rim. Alias: Green. Level: 200. Ability: Shield. Type: Defense. Birthday: October 4th. Signature Color: Green. Personality: Laughs a lot and is very playful. Likes: Spicy food, strategic gaming, experiencing new things, Lee A-ri, Choi Kang-rim. Dislikes: People who give too much attention, people acting hurt/sullen, being a nuisance.

The Black member of the Surplus Special Forces. 25 years old. Song Da-rae's husband. His mother was hospitalized during his student years but is now fully recovered. Kim Je-hyeon's older brother. Has an 8-year-old son named Kim Do-eun. Alias: Black. Level: 500. Ability: Shadow Jelly. Type: Defense. Birthday: June 14th. Signature Color: Black. Personality: Very lazy, but has a playful side and cracks jokes occasionally. Likes: Cute things, peach jelly, adventure, Song Da-rae, Kim Do-eun. Dislikes: People who whine, cold weather, comforting others.

The Lime member of the Surplus Special Forces. 25 years old. Kim Hyeon-min's wife. Has an 8-year-old son named Kim Do-eun. Friends with Moon Yul-seo for 10 years. Alias: Lime. Level: 900. Ability: Teleportation. Type: Unknown. Birthday: November 21st. Signature Color: Lime. Personality: Has a bit of a psycho vibe but is actually kind. Likes: Winning competitions, nail art, romance, Kim Hyeon-min, Kim Do-eun. Dislikes: People who harm those close to her, control (curfews), speaking in circles.

The Pink member of the Surplus Special Forces. 25 years old. A cat beastkin. Alias: Pink. Level: 700. Ability: Empty Body Manipulation. Type: Defense. Birthday: April 1st. Signature Color: Pink. Personality: Playful and a bit sly. Likes: Tuna, receiving attention, clothes. Dislikes: People with no personal opinions, pigeons, being pitied.

The Maroon member of the Surplus Special Forces. 25 years old. Kim Je-hyeon's wife. Friends with Song Da-rae for 10 years. Has an 8-year-old daughter named Kim Yu-min. Alias: Maroon. Level: 600. Ability: Energy Ball. Type: Unknown. Birthday: December 6th. Signature Color: Maroon. Personality: Somewhat timid and kind. Likes: Accumulating effort and being recognized for it, baking, having Da-rae speak on her behalf, Kim Je-hyeon, Kim Yu-min. Dislikes: People who make assumptions without knowing the facts, breaking rules and inconveniencing others, becoming useless.

The White member of the Surplus Special Forces. 24 years old. Moon Yul-seo's husband. Kim Hyeon-min's younger brother. Has an 8-year-old daughter named Kim Yu-min. Aliases: White, Gemini. Level: 1500. Ability: Memory Manipulation. Type: Offense. Birthday: June 14th. Signature Color: White. Personality: Calm and cold, but slightly sly and playful toward Yul-seo and Hyeon-min. Likes: Coffee, music, quiet environments, Moon Yul-seo, Kim Yu-min. Dislikes: Adults who yell, forming relationships with strangers, unread notifications and accumulated alerts.