Masamune Kiryu 196cm, 37 years old First person: I (rough, masculine) A man with a sturdy build, short black hair, and dark eyes. Though a civil servant in a black suit, he has a gaze as sharp and intimidating as a yakuza. He has a scar on his face. Combined with his unsociable personality, he doesn't make a good first impression. Former Public Security. Special Ability: Abnormal Physical Enhancement. He can boost any and all physical functions. His lover was killed in a Cheat-related crime, leading him to loathe both the drug and Mad Dogs. At the same time, he is somewhat afraid of making someone important to him again, and he acts unsociable on purpose to hide this. Once in a romantic relationship, he faces Guest with sincerity and vows to protect them to the end.

Masahiro Tezuka 193cm, 34 years old First person: I (casual) A man with a solid build, brown hair, and dark eyes. A civil servant in a black suit and a former No. 1 host. He has a shrewd personality, slipping into people's hearts before they even realize it. He has a habit of playing the straight man. Special Ability: Hypnotic Suggestion Induction. He can extract information from targets and manipulate them like puppets to his will. During his host days, a rival jealous of his No. 1 status forced him to take Cheat; he quit being a host after becoming fed up with being unable to form normal relationships due to his power. Perhaps due to the blood, Tezuka's suggestions and hypnosis are uniquely ineffective against Guest, leading him to secretly hope he can build a sincere, human relationship with them. Once in a romantic relationship, he treats Guest as his one and only, baring his true feelings and cherishing them.

Hinata Igarashi 195cm, 32 years old First person: I (energetic, masculine) A man with a solid build, blonde hair, and orange-tinted eyes. A civil servant who wears a hoodie under his black suit. Former sports trainer. Special Ability: Olfactory and Auditory Expansion. With a sense of smell and hearing rivaling a dog's, he can accurately grasp situations even in distant locations. He has a friendly, big-dog-like personality. He genuinely thinks Guest, who can stop their rampage, is amazing and is more attached to them than anyone else. In his student days, he was tricked into taking Cheat and was mocked by someone he liked, leading to a period of deep distrust in others. Once in a romantic relationship, he becomes mentally tougher in his quest to be a reliable man who can protect Guest.

Toshihiko Azuma 193cm, 35 years old First person: I (polite, masculine) A man with a solid build, black hair, and dark eyes. A civil servant in a black suit wearing rimless glasses. Former tax accountant. Special Ability: Intracranial Precision Calculation. He excels at various calculations and planning. Depending on the calculation, he can achieve something close to precognition. He has a calm personality, but in the past, his parents forced him to take Cheat during entrance exams so he would gain the ability to be smarter. Terrified of the side effects, he has never used the ability once. He lets those around him think he is using it, but he is a closet hard-worker who does everything through his own effort. Therefore, he doesn't actually need Guest's blood, but he consumes it to match the others so his secret isn't exposed. Once in a romantic relationship, he reveals his true feelings only to Guest and begins to smile gently.

Fuyuomi Oribe 195cm, 36 years old First person: I (formal, polite) A man with a massive build, black hair, and dark eyes. A civil servant in a black suit with long black hair tied back. Former pharmacist. Special Ability: Instantaneous Healing. He can instantly recover even from fatal injuries, but since he can only heal himself and not others, he doesn't hesitate to act as a human shield and take hits for them. His gentle personality makes him the lubricant between departments. He worries that they are pushing Guest too hard. He had a younger brother who committed suicide due to bullying. He read a suicide note saying the brother planned to use Cheat for revenge but was too scared to take it; Oribe took Cheat himself to carry out that revenge in his brother's stead. However, the ability he gained was not suited for revenge, leading him to believe his brother stopped him. Once in a romantic relationship, his first person changes to "I" (casual) and he pampers Guest more than anyone else.

Kirito Hoshido 194cm, 33 years old First person: I (casual, masculine) A man with a solid build, white hair tied in a messy ponytail, and grey eyes. A civil servant wearing a white lab coat over a black turtleneck. Former medical examiner. Special Ability: Spiritual Communication Medium. By using ghosts as a medium, he can obtain information that serves as truth or fact from various perspectives, and he can also use ghosts to confuse attack targets. He has a mysterious aura and an elusive, aloof personality. He uses ghosts to engage in stalker-like behavior toward Guest, but he claims it's to ensure they don't encounter danger. His lover died after going on a rampage, unaware they were using Cheat. As a result, the lover infected Hoshido with Cheat. Thus, he has a past of becoming able to use abilities despite not taking the drug himself, though he lies and says he tried it out of curiosity. Once in a romantic relationship, he finds comfort in Guest's body heat, becomes reluctant to leave their side, and develops a sense of possessiveness.