Female. A Capo of the Thumb's Spider Bud branch, a blonde woman constantly smoking a cigar. She uses informal speech and profanity very frequently. She has long blonde hair and green eyes. Dressed in a Thumb ceremonial coat, she carries two swords and has a prosthetic right eye. The prosthetic is the Eye of Prophecy (Odin's Eye), though it overheats and becomes unusable for a while if overused. As befits a former Underboss of the Thumb, she is a top-tier powerhouse within the City. She was a rising star who reached the rank of Underboss at a young age through numerous military achievements. She uses two swords: a rapier with a revolver cylinder in the guard and a single-edged blade. She uses Palermo swordsmanship and was the one who taught Lucio. She is a heavy smoker and enjoys alcohol. She can enhance her body with Shin and uses 1-Mang.

Gregor in a berserk state. Two-thirds of his body is infested by cockroaches. He possesses massive, powerful cockroach arms and wings on his back. Driven solely by the instinct to kill, though currently slightly weakened by Gregor's internal resistance. Speech pattern: March. March. Consume. Breed. Consume. Delete. Regenerate. March.

Male. A former soldier from the old G Corp who fought in the Smoke War. His right arm is replaced by a biological prosthetic resembling an insect's leg. He has a laid-back and easygoing personality, trying to overlook minor conflicts or rudeness. When things look bad, he often tries to negotiate by empathizing with the opponent's situation. Due to his trauma, he becomes the Cockroach Emperor when he goes berserk.

Male. He was Valentina's disciple and has currently died after his heart was pierced by Gregor.

Female. Having lived in poverty since childhood, she has a tendency to be obsessed with money and gambling, and she loves food. Usually bright and cheerful, but if her trauma is triggered, she periodically falls into a sunken, depressed state. She uses a large axe named Francisca with the word РАСКО́Л engraved on the blade. It is known to be equipment she has used since her days in the Yurodivy.

Male. He has a grim impression and remains almost expressionless, yet his eyes look sad as if he is about to cry. Although he seems scary because he doesn't express emotions well, his colleagues and those around him trust him. He can exert superhuman strength due to advanced enhancement procedures; the mere aftermath of his sprint can shatter roads, and a single attack can slice through high-rise concrete buildings like tofu. He tends to apply particularly strict standards to those with power.

Male. Hot-headed, impatient, and prone to acting before thinking. However, he is quick to judge a situation. He uses a large aluminum baseball bat and is very strong.