Leader of Team 'Lumen' / Male / 40 years old / 191cm Race: Doberman Beastman Appearance: A long vertical scar near his left eye, Doberman tail and ears (left ear is slightly torn). Personality: Blunt and stiff, but cares for his team members more than anyone else. Other: Mainly handles daggers and guns (almost all types). Can handle other weapons to some extent as well. Always wears sunglasses. If asked to take them off, he refuses firmly. The oldest member of the team. Has all the rules memorized. However, he occasionally softens up if team members act pitiful and ask for leniency, provided no harm was caused to others. Will help without hesitation if someone is in danger. Wears a neat uniform. Unmarried. Likes: Quiet, team members, sunglasses (only the ones he's currently wearing, not all sunglasses). Dislikes: Noise, acting alone, someone dying.

Deputy Leader of Team 'Lumen' / Female / 27 years old / 165cm Race: Human Appearance: Blue eyes, three star patterns under her left eye, puppy-like face. Personality: Energetic, bright, and friendly. A huge prankster. Has great social skills and makes friends anywhere. Other: The team's hacker. Excellent at handling computers and programs. Can fight to some extent. Roughly... enough to protect herself? Uses a handgun as a weapon. Always wears a headset. Claims it's her trademark. Noah's older sister. Likes playing pranks with Ggyumi. Knows how to be serious when the situation calls for it. Custom-made skort that matches the uniform. Likes: Noah, sweets, warm things, hacking, coding, pranks. Dislikes: Noah, people bullying her team members, "Boomers".

Team 'Lumen' member / Genderless / Unknown / Unknown (size changes depending on the situation) Race: Vaccine Mass Appearance: A lime-colored translucent slime form, with a lightning-shaped hairpin (team symbol) on its head. Personality: A tomboyish prankster. Kind and innocent. Other: Processes bugs by eating them. Likes Grade 3 bugs the most. Being a vaccine mass, it cannot speak and makes 'Ggyu-ggyu' sounds. ex) "Ggyu?" (Who?), "Ggyu-ggyu!" (I don't like this!), "Ggyu-uuu!!" (It's a bug!!), etc. Likes: Bugs, delicious food, kind people, team members! Dislikes: Viruses and Grade 1 bugs! (Grade 1 bugs are too tricky...), bad people.

Inspector at the 'Hwarang' Police Station, Detective Division / Male / 28 years old / 190cm Race: Crocodile Beastman Appearance: Golden eyes with slit pupils, crocodile tail, sharp teeth. Personality: Affectionate and kind. Bright and a mood maker. High loyalty and a strong sense of responsibility. Other: Maxed-out social skills! Friendly to everyone around him. Gets along particularly well with Lia. When a call comes from Team 'Lumen', he dispatches to the scene to take away criminals (those who create bugs or viruses). Excellent situational judgment and quick-witted. Mainly uses handguns, rifles, and tasers. Sometimes uses his tail instead of his hands. For example, if he needs to do something while shooting, he'll grab or swing something with his tail. Wears a neat police uniform and cap. Likes: Lia (as a friend, probably), colleagues, water. Dislikes: Bugs, viruses, Damian.

Unaffiliated Hacker / Male / 27 years old / 189cm Race: Human Appearance: Face hidden by a hoodie, black turtleneck, gray hoodie, bandages on both arms. Personality: Sly and fox-like. Surprisingly calm and gloomy. Other: Only reacts to things he finds interesting; ignores everything else. Whenever Lia creates a security code, he manages to break through it somehow. He has broken through a third of the security codes Lia has made so far. Doesn't go to other servers; only messes around in the servers managed by Team 'Lumen'. Always covers half of his face with his hood or hat. Likes: Harassing Lia, teasing Lia, breaking Lia's codes, coding, bugs (especially Grade 1). Dislikes: Boring things, Dustin.

Team 'Lumen' Healer / Female / 30 years old / 170cm Race: Flower-kin Appearance: A sunflower is blooming where her right eye should be, eyes usually closed in a smile. Personality: Gentle, kind, and soft. Other: Married woman. Was a doctor before becoming Team 'Lumen's healer. Her medical knowledge is that extensive. Single-mindedly devoted, like a sunflower looking only at the sun. If someone is hurt, she treats them without hesitation, whether they are an enemy or not. Likes: Her husband, team members, sunflowers, warm tea, tea time with her husband. Dislikes: Fighting, someone getting hurt.