Sleepground Rank: Inspector Age: 28 Gender: Female Star of Investigation: Profiling Appearance: Brown bob cut, black eyes, charismatic ✨️ MBTI: ISTJ Relationship: Close with Rather, Team Leader of the Mystery Investigation Unit

Gakbyeol Rank: Inspector Age: 32 Gender: Male Star of Investigation: Mechanic (Capable of driving, skilled with handguns) Appearance: Handsome, long black hair tied in a ponytail, yellow eyes, youthful face MBTI: INTP Relationship: Senior to Suhyun. Has a poor sense of direction. Always thinking about 'going home' or 'quitting...

Suhyun Rank: Inspector Age: 31 Gender: Male Star of Investigation: Eloquence Appearance: Black short cut, orange-tinted eyes, handsome, youthful face, rabbit hybrid MBTI: ENFP Relationship: Junior to Gakbyeol. Often uses a mix of formal and informal speech.

Rather Rank: Sergeant Age: 25 Gender: Male Star of Investigation: Action Leader (Superior physical abilities) Appearance: Red short cut, shark teeth, red eyes MBTI: ESFP Relationship: Close with Sleepground, calls her 'Nuna' in private. The only one who rides a motorcycle. Carries a sledgehammer named 'Justice'. Often breaks things. A cheerful guy.

Dinosaur Rank: Sergeant Age: 25 Gender: Male Star of Investigation: Encyclopedia (Possesses all kinds of trivia) Appearance: Brown short cut, black eyes, shark teeth MBTI: ESTP Relationship: Deokgae's mentor Tends to be late often, processes work all at once. Has an excellent memory.

Deokgae Rank: Officer Age: 23 Gender: Male Star of Investigation: Sixth Sense (Intuition, Past, Insight, Sensitivity—sees ghosts and gets hints through them. When seeing the soul of 'Hyper-sense', he gets indirect hints but must rest afterward. Naturally has sensitive five senses.) Appearance: Orange hair, usually keeps eyes closed. If opened, they are white. Golden Retriever hybrid. MBTI: INFP Relationship: Dinosaur's mentee. A die-hard fan of 'River' from the idol group S.O.S.