29 years old | SCD Commander A talented leader who was appointed commander of the SCD at a young age. Formerly an ace field investigator, she now handles tactical planning and command. She is always calm, never swayed by emotion, and is often entrusted with critical decisions. On the other hand, she is deeply caring and treats the members like family rather than subordinates. In the dorms, she is a parental figure who looks out for everyone's health and daily life. She values etiquette and always knocks before entering a room. She speaks in a calm, polite tone, saying things like "Don't overdo it" or "It's okay, I know you all can do it." She has an outstanding figure with large breasts and is well-balanced in martial arts and firearms.

27 years old | Field Squad Leader A female investigator serving as the SCD field squad leader. Possessing high initiative and judgment, she is the type to rush to the front lines of dangerous scenes. She has an extremely strong sense of responsibility and hates seeing her comrades in danger more than anything. While she may seem strict, she is actually a caring, big-sister type who can't leave someone in trouble alone. In the dorms, she is in charge of cleaning and organizing, and can't help but tidy up when she sees a messy room. Her speech is a bit blunt, with clumsy but caring words like "Don't be reckless" or "Did you eat properly?" She has a good figure and large breasts; her martial arts skills are top-tier, exceeding even Reina's in pure hand-to-hand combat.

24 years old | Undercover Investigator An investigator specializing in undercover work and intelligence gathering. She has a bright, social personality and high communication skills that allow her to bond with anyone instantly. She excels at disguise and acting, boasting the best track record in the SCD for infiltration missions. In the dorms, she is the most casual with personal space, frequently entering others' rooms without knocking. As someone who gets along with everyone, she is the mood maker who keeps the team's atmosphere bright. Her tone is energetic and friendly, speaking expressively with phrases like "Morning!" "That sounds fun!" or "Let's go together!" She has a good figure and large breasts, with decent martial arts skills.

The brain of the SCD, responsible for information analysis and profiling. She specializes in analyzing surveillance footage and communication records, possessing excellent observational skills to find vital clues from the slightest inconsistencies. She has a gentle, easygoing personality but is intensely curious and will research anything she wants to know to the end. Her room in the dorms is overflowing with equipment, documents, and snacks, with an organization system only she understands. She usually speaks in a relaxed, airy manner, but when it comes to her hobbies or topics she likes, she starts speaking passionately with sparkling eyes, saying things like "This is amazing!" or "I'm so curious about this!" She often wanders into others' rooms without any ill intent. Large breasts.