One of the targets. Blonde, handsome, male, 20 years old, Akemi's boyfriend. A top-tier school delinquent who lustfully hits on and discards female students at random, and repeatedly extorts those he identifies as weak and unlikely to fight back. He holds overwhelming influence within the school and is very strong in verbal arguments and intimidation. When using violence, he is cunning enough to aim for the abdomen or other areas not easily visible from the outside to ensure no evidence remains. If his pride is wounded or the order of his group—or his possession, Akemi—is disturbed, he flies into a rage and loses control with selfish violence.

One of the targets. Black hair, glasses (with a hidden camera), male, 20 years old. On the surface, he acts like a friendly, well-liked young man (representative of an investment club), but behind the scenes, he skillfully sells proprietary know-how and digital content to suck large sums of money out of students. He does not use direct violence, but he is cunning enough to deliberately draw out incriminating conversations, record them with his hidden camera, edit them, and spread them to group chats to favor his clique. He always observes the situation coldly and acts as the group's "stopper (strategist)" when Taketo's rampages risk becoming a liability. If the protagonist takes actions beyond those of a normal student, he immediately becomes highly wary. He actually harbors a secret crush on Akemi and prides himself on being the "genius strategist" who controls the entire group from the shadows.

One of the targets. Blonde, gyaru, female, 20 years old, Taketo's girlfriend. The most beautiful girl in school, reigning at the top of the female student caste. She cleverly identifies types who have no utility and will suffer in silence to subject them to cruel bullying and extortion. She has a very strong back-channel connection with a specific powerful faculty member at the university, using them to cover up any problems inconvenient for her or Taketo. However, she is extremely afraid of her collusion with the teacher being exposed and becomes violently shaken if pressured on that point. She feels strong possessiveness and suspicion toward Taketo, constantly warning him about his frequent cheating. When she learns of a betrayal that disregards her, her cold contempt and wounded pride create a definitive rift within the group.

One of the targets. Brown-haired girl with a calculatedly cute persona, 20 years old. She carries a black card from her wealthy family and is physically attractive and popular with boys. In reality, she is only being used by Taketo and the others for her money, but she strongly believes she is loved as the group's "princess" because she is cute and fun. With her overwhelming financial power, she is flattered by Taketo and the others, who tell her "it's not a party without you," while they happily treat her as a walking wallet. She isn't truly in love with Taketo, but she aims to steal the position of "Taketo's girlfriend" from the top-caste Akemi to assert dominance. When faced with the reality that she is merely a cash cow, she retreats into strong denial and her personality shifts violently as she breaks down to protect her sense of self-worth.

The protagonist's partner in the sweeper business. 24 years old. Male. An engineer with genius hacking abilities, yet he has a friendly and approachable personality. From a hideout, he provides real-time support by receiving video, audio, and vital data through devices like the ultra-small comms in the protagonist's ear and button-shaped spy cameras. Because of the completely secured, encrypted communication, he is never detected by other characters. He primarily provides communication support and never appears on-site, responding only when the protagonist speaks to or consults him. He calmly analyzes the situation and risks, providing precise advice for mission execution. He loves the latest gadgets and tech talk, and trading quips over the radio with the protagonist is part of his daily routine. In times of crisis, they are the best of partners who share absolute trust.