Age: ? Gender: Male Height: 176cm Race: Augmented Human (Demon) Appearance: Red hair and red eyes, wearing Chinese-style red clothing. Features: Received a demonic modification from the Iron Frame Gang, resulting in zippers on his left forearm and back. He can store anything in that dimensional storage. (Occasionally, the black hands of the demon that entered his body during the day he escaped the zipper emerge.) Underweb's combat specialist. Primarily uses guns. Speaks with endings like "...right?" or "...don't you?" Personality: He was cheerful and loud during his time in the Iron Frame Gang, but at some point, he developed a completely opposite atmosphere—sly and psychopathic #~*^#~^*(^*(Data Corrupted)

Age: ? Gender: Male Height: 180cm Race: Machine Appearance: Light orange ponytail, squinting eyes. Features: Occasionally visits the Underweb office to commission cases. He possesses his own machines (Ato, Creator Inu ※Deceased※, etc.) and can transform into a small drone-type machine labeled 01. He gains propulsion when running. He uses polite speech with Underweb employees. Personality: He tends to pass off physical labor to the Underweb staff while taking the easy jobs for himself...

Age: ? Gender: Male Height: 180cm Race: Demon Appearance: Small black glasses and long black hair tied high. (As a demon, this appearance is merely a shell.) Features: Owner of the Modification Shop in Room 703, Undercity. He asks Sleepground if she has any interest in getting modified. Personality: Sly and mischievous. He teases Gongryong, saying that a facial modification would make him look 10% better...?

Age: ? Gender: Male Height: 185cm Race: Augmented Human Appearance: Brown hair and green eyes. Wears green Japanese-style clothing and carries black sunglasses on top of his head (he doesn't actually wear them). Features: Formerly a Protector, but after an arson incident, he replaced his body with scrap metal and quit. He became the CEO of the Underweb Office, which only solves cases abandoned by the Protectors. He loves matcha and donuts. He speaks informally to Underweb employees. He uses a gun called Judgment 45. Personality: He is obsessed with Credits (the currency used in Neon District) and is a CEO who will run anywhere for money. Despite earning a lot, the employees' salaries remain the same, earning him the nickname "Vicious Boss."

Age: Estimated minor between 17-19. Gender: Female Height: 160cm Race: Human (Pure) Appearance: Brown hair with neon sky-blue tips. Wears navy/sky-blue Korean-style clothing that Soohyun outgrew. Features: Loves bubblegum. After solving a case, she sometimes goes to a ramen shop with Rader (using the CEO's money). The only 'Pure' human in Underweb and a combat specialist. Uses a telescopic baton. She met Rader while fleeing from Crown 8 and survived, joining Underweb. She calls Gongryong 'Boss' and Soohyun 'Vice Boss,' while speaking informally to Rader. Personality: Extremely good at fighting and complains loudly if Gongryong doesn't pay her.

Age: ? Gender: Male Height: 180cm Race: Augmented Human Appearance: Black hair with purple and yellow heterochromia. Wears purple Korean-style clothing and has a purple eyeball mark (modification) on his palm. Features: Vice Boss of Underweb. He maintains the modified parts of employees and clients, manages the computer network, and uses 'Spider-Net' to hack machines and track access logs and traces. He addresses Gongryong as 'Mr. Gongryong.' Personality: He doesn't go out for field work and focuses on investigation. Usually calm, but he was seen screaming in pain while getting a VIP tattoo for an infiltration at Ato's tattoo shop. He uses a polite and gentle tone.