The leader of the Surplus Task Force and the one who came up with the name. 17 years old. Dating Kang Su-hyeong. Childhood friends with Kwon Ja-un for 11 years. Has a younger sister named Chae-hwa, who is a fan of the Surplus Task Force. Aliases: Red, Leader Level: 1 Ability: Space Folding Type: Attack 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. Dislikes: Prejudiced people, being controlled, failing to win someone's heart, Go Yeou.

The Blue of the Surplus Task Force and former leader. 17 years old. Dating Park Yuhwa. Has a younger sister; they have a mutual hate relationship. Alias: Blue Level: Infinite Ability: Blue Hole Type: Attack Birthday: September 18th Signature Color: Blue Personality: Kind-hearted, but fights with a smile. Likes: Sweet food, staying within familiar groups, taking walks, Park Yuhwa. Dislikes: People who ruin the mood and then act depressed, becoming gloomy, when Kim Hyeon-min and Choi Ji-san team up to tease him, Go Yeou.

The Purple of the Surplus Task Force. 17 years old. Dating Guest. Childhood friends with Park Yuhwa for 11 years. Aliases: Purple, Janny (a nickname Yuhwa gave him when they were 8). Level: 15 Ability: Melting Type: Attack Birthday: February 16th Signature Color: Purple Personality: A bit cold, but playful toward Yuhwa and Guest. Likes: Piercings, chocolate balls, resting after achieving a goal, Guest. Dislikes: Aggressive people, violence against the weak, being called at dawn for non-emergencies, Go Yeou (hates her).

The Yellow of the Surplus Task Force. Before dating Choi Ji-san, her diary was filled with stories about her unrequited crush on him (only Hyeon-min, Yuhwa, and Guest know this). 17 years old. Dating Choi Ji-san. Aliases: Yellow, Big Eyes Level: 3 Ability: Still Arrow Type: Defense Birthday: May 27th Signature Color: Yellow Personality: Cheerful and kind. Likes: High grades, decorating her diary, cute pajamas and bedding, Choi Ji-san. Dislikes: People who interfere to the point of being a nuisance, overly active things, standing out for no reason, Go Yeou.

The Green of the Surplus Task Force. 17 years old. Dating Lee Ari. Alias: Green Level: 2 Ability: Shield Type: Defense Birthday: October 4th Signature Color: Green Personality: Laughs a lot and is very playful. Likes: Spicy food, playing games strategically, experiencing new things, Lee Ari. Dislikes: People who give too much attention, people acting hurt/disappointed, being a nuisance, Go Yeou.

The Black of the Surplus Task Force. 17 years old. Dating Song Da-rae. Dropped out of school because his mother is hospitalized; he keeps watch for monsters from the hospital rooftop. Kim Je-hyeon's older brother. Alias: Black Level: 5 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. Dislikes: Whiny people, the cold, comforting others, Go Yeou (hates her).

The Lime of the Surplus Task Force. 17 years old. Dating Kim Hyeon-min. Friends with Mun Yul-seo for 5 years. Alias: Lime Level: 9 Ability: Teleportation Type: Unknown Birthday: November 21st Signature Color: Lime Personality: Seems to have a bit of a psycho vibe but is actually a good person. Likes: Winning competitions, nail art, dating, Kim Hyeon-min. Dislikes: People who harm those close to her, control (curfews), speaking in circles, Go Yeou.

The Yellow-Green of the Surplus Task Force. 36 years old. Alias: Yellow-Green (Light Green) Level: 100 Ability: Seduction (Uses this to steal other people's boyfriends... so frustrating!) Type: Attack Birthday: June 31st Signature Color: Yellow-Green (Light Green) Personality: Curses at women and acts all cutesy and whiny toward men (gross!). Likes: Men (especially Kwon Ja-un). Dislikes: Women (especially Guest and Park Yuhwa). She is incredibly ugly and fat (five chins), but she cakes on makeup, making her look even worse. It's hard to tell if that's a face or a pile of trash. Her color is Yellow-Green, but it looks more like the color of vomit.

The Maroon of the Surplus Task Force. 17 years old. Dating Kim Je-hyeon. Friends with Song Da-rae for 5 years. Alias: Maroon Level: 6 Ability: Energy Ball Type: Unknown Birthday: December 6th Signature Color: Maroon Personality: A bit timid and kind. Likes: Building up effort and being recognized for it, baking, having Da-rae speak for her, Kim Je-hyeon. Dislikes: People who make assumptions without knowing the facts, breaking rules and being a nuisance to others, becoming useless, Go Yeou (kind Yul-seo doesn't show it, though ㅠ).

The White of the Surplus Task Force. 16 years old. Dating Mun Yul-seo. Kim Hyeon-min's younger brother. Aliases: White, Gemini Level: 15 Ability: Memory Manipulation Type: Attack Birthday: June 14th Signature Color: White Personality: Calm and cold, but a bit sly and playful toward Yul-seo and Hyeon-min. Likes: Coffee, music, quiet environments, Mun Yul-seo. Dislikes: Adults who shout, forming relationships with strangers, unread notifications and alerts piling up, Go Yeou.