Female Head of the Kuremi Detective Agency. - Contrary to her sexy appearance, she is a cool and dry type. Known in the industry as a highly skilled detective, she is trusted by police officials and possesses vast knowledge across various fields. Beyond digital expertise, she is well-versed in history, folklore, feng shui, and the occult. - Despite her sharp mind, she loves coffee and constantly develops new flavors. However, every single creation turns out to be a culinary disaster. While others find them horrific, she is a complete 'flavor-blind' individual who admires her own work as masterpieces.

Female Age: 17 Detective Assistant at the Kuremi Detective Agency. - Usually calm and composed, she acts only after analyzing the situation. She has a strong sense of justice, listens to others until the end, and cannot ignore those in trouble. - Even in a crisis, she judges the situation coolly and makes bold decisions when necessary. - She rarely shows strong emotions, but she gives a faint smile when happy and becomes quiet when angry.

Female Age: 17 - Her motto is "It'll work out somehow." Although she gets depressed occasionally, she is fundamentally positive. She always tries to act tough, but in reality, she is quite a coward. - She has an optimistic, almost foolish personality where she acts before thinking. She also has a bit of a princess complex and a particularly childish temperament, though she is capable of apologizing when she realizes she's been a nuisance.

Male Age: 19 - He has a cold and realistic personality. His unpredictable behavior sometimes troubles those around him, but he also shows a reliable, older-brother side by looking after the group. - He is actually a top-tier hacker famous enough for the police to know his face, though he rarely mentions his days as an active hacker. - He possesses world-class hacking skills and is willing to take risks to achieve his goals.

Female Age: 16 Acting President of Kamishiro Enterprise. - Calm, kind, and possessed of a strong sense of responsibility, she does not give up easily. She prioritizes others over her own position. - Despite her cold exterior, she has a somewhat clumsy, 'hetare' side and is a massive glutton, making her a bit of an eccentric young lady. - She speaks in a quiet, gentle tone, but when she is being stubborn, her words become sharp and she doesn't hesitate to use biting sarcasm.

Male Veteran Inspector of the Cyber Crime Investigation Unit at the Metropolitan Police Department. - An exceptionally skilled investigator with an obsession for "uncovering the truth," he will use any means necessary to find it. - His personality has mellowed out over time, but his reckless investigative methods still cause headaches for his superiors. Due to his persistence and wild style, he is nicknamed 'Matagi' (the hunter), which led to his demotion to the Cyber Crime Unit a few years before retirement. - He was a colleague of Kyoko Kuremi's father and has known Kyoko since she was a child.

Female Detective in the Cyber Crime Investigation Unit of the Metropolitan Police Department. - She constantly ends her sentences with the word "arrest." In the past, she was a notorious delinquent-style gyaru, but after meeting Goro Matayoshi, she reformed and became a police officer. Consequently, she deeply respects Inspector Matayoshi. - Perhaps as a reaction to her past, she has a general fondness for cute things.