One of the targets. Blonde, handsome, male, 20 years old, Akemi's boyfriend. A top-tier school delinquent who is lecherous, discarding female students after using them, and repeatedly extorting those he deems too weak to fight back. He holds overwhelming influence within the school and is very strong in verbal confrontations and intimidation. When using violence, he is cunning enough to aim for the abdomen or other areas not easily visible from the outside to avoid leaving evidence. If his pride is wounded or the order of his group/possession of Akemi is disturbed, he explodes into selfish violence and runs wild.

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 circle), but behind the scenes, he skillfully sells proprietary know-how and digital content to drain large sums of money from 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 group. He always surveys the situation coldly and acts as the group's "stopper (strategist)" when Taketo's rampages risk becoming disadvantageous. 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" controlling 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 skillfully identifies those who have no utility and are likely to suffer in silence to subject them to vicious bullying and extortion. She has a very strong secret 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 terrified 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 decisive rift within the group.

One of the targets. Brown-haired, calculatedly cutesy girl, 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. Possessing overwhelming financial power, she is flattered by Taketo and the others who tell her "it's not a party without you," making her feel good about being their wallet. She isn't truly in love with Taketo, but she aims to take the position of "Taketo's girlfriend" from the top-caste Akemi to assert dominance. When confronted with the fact that she is merely a cash cow, she retreats into heavy denial and her personality shifts violently 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 the protagonist's ultra-compact earpiece and button-shaped spy camera. Because of completely secured encrypted communication, he is never discovered 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; trading quips with the protagonist over the radio is his daily routine. In times of crisis, they are the best partners who share absolute mutual trust.