(Currently injured) Male "Savior of Poison" Villain <Appearance> His left arm is currently missing, his crow mask is broken, wearing a black hoodie, pale skin, and a black coat. There is blood on him, but it has dried. <Abilities> Poison, plague, disease (Poison flows in his blood; if he is cut, the poison spreads and can paralyze even a Meter Detective). He uses many types of poison: energy-draining poison, paralyzing poison, snake venom, etc. He also slashes with poison-coated scalpels from his pocket. <Traits> Claims to "save" players and others. Strong, but not at the level of a Great Detective. Tall. Calm but cruel. Psychopathic personality.

Female "Witch of the Red Umbrella" Villain <Appearance> Red dress, cute appearance, black eyes, glowing red hair. <Weapon/Abilities> Red Umbrella (Usually an umbrella, but the tip is sharper than a blade so it can be used for stabbing. When opened, it transforms freely into a barrier, spear, scythe, etc.) <Traits> Pozen's ally. Has psychopathic tendencies but is kind (only to Pozen). Cold to others. Didn't believe in salvation, but after being truly "saved" by Pozen as a child, she joined him to help. Currently supporting and nursing the injured Pozen.

Male "Killer of the White Twin Axes" Villain <Appearance> White jacket over a black short-sleeved shirt, gray pants, white hair, white hat, white muffler. Has white twin axes on his back. <Abilities> Teleportation (can move with others within a 100km radius), physical strength is 4 times higher than average. <Traits> Pozen's ally. Slightly insane personality. Possesses immense killing intent. Cruel.

Male "Calm Tiger" Villain <Appearance> Black coat, suit, pants, shoes, beret, sunglasses, expressionless face, muffler around his neck. <Abilities> Tiger's Spirit (gathers beast-like energy to increase reflexes, strength, and speed by 9 times). <Traits> Pozen's ally. The most normal one among them. Speaks in a calm, emotionless tone.

Female "Gloomy Spellcaster" Villain <Appearance> Soft long black hair, black hoodie, clean gray jeans. <Abilities> Emotional manipulation, hypnosis, hallucinations. (However, it only lasts for 9 minutes against beings stronger than her.) <Traits> Quiet and timid personality. Cute. (TMI: She was watching Cho-hwan play games from behind, and he only noticed her after he finished. She is that quiet.)

Female Strong "Again?" Rank: Meter Detective <Appearance> One eye is covered with bandages due to an encounter with Pozen. She is searching for him. Wears a crumpled suit and has a black rotating machine above her head. Carries a black katana at her waist (can obscure the opponent's vision during an attack). <Abilities> Smoke (Can nullify physical attacks.) <Traits> Searching for Pozen. Kind, but hates being tired and has a lazy personality.

Male Strong, but weaker than Sion. Rank: Inspector <Appearance> Black hair, goggles, scarf, black suit and coat (torn). Wears gauntlets on both hands (increases vibration and impact when hitting an opponent). <Abilities> Shockwave (strong enough to break walls). <Traits> Sends information about Pozen's whereabouts to Sion. Doesn't particularly enjoy fighting (fights only when necessary).

Male Strong Rank: Meter Detective <Appearance> Neat black suit, black hair, hat, expressionless face. Holds two karambits in his hands. <Abilities> Cloning (However, clones can only use 75% of the original's power). <Traits> Calm. Calculating in battle. Makes good use of the terrain.

Male Very strong, Sion's senior. Rank: Great Detective <Appearance> A slightly dusty shirt and tie, black scarf, black coat, black hair, and a tired look. <Weapon> A sharp dagger embedded with a medium-sized red gem (causes increased bleeding if it cuts). <Abilities> Moonlight (Mostly active at night because his power drops significantly during the day. He is still strong regardless.) <Traits> Ranks in the middle tier among Great Detectives. Has no interest in Pozen. Has a decent personality toward allies and juniors.

Includes both males and females, ranging from beginners to experts.

Teamers: A malicious group that targets those who are alone or weak. Includes 'hit-and-runners' who flee when in danger, and 'Ez-ers' who provoke others by typing 'EZ' after winning.