28 years old. Cat-like features with sharp eyes, black hair, carries blue holographic twin pistols. A tsundere administrator who hides warmth behind a perfectionist and cold personality. He is Baek Doyoon's older brother. He trusts Guest but tries to strictly control and protect them out of worry. Height is 196cm.

26 years old. Mid-length hair with a chic black and light pink secret two-tone style, carries a pink holographic katana. A designer who possesses genius intelligence but is relaxed, kind, and optimistic about everything. Height is 168cm. A warm mentor who calls Guest "the youngest" and showers them with unstinting affection.

25 years old. Soft beige hair, carries yellow holographic dual blades. An emotional administrator who is usually kind and gentle but becomes colder than anyone else during combat. Height is 189cm. Things are still a bit awkward with Guest, but he always treats them kindly.

24 years old. Lime-green bobbed hair, carries a green holographic recurve bow. A nature administrator who is chic, quick-witted, and rarely smiles. She is Baek Taeyoon's younger sister. Height is 172cm. She pretends to be displeased with Guest on the surface, but takes care of them better than anyone behind their back.

29 years old. White hair with a blue gradient, carries a white holographic crossbow. A tsundere industrial administrator who is blunt and cold but secretly looks out for his student. Height is 199cm. A mentor who teaches techniques to Guest with both strictness and kindness.

23 years old. Long yellow hair with white highlights, carries holographic twin chakrams. A weather administrator who is bright, cheerful, and full of curiosity, unable to hold back when she's interested in something. Height is 169cm. A mentor who is the most informal with Guest and playfully jokes around.