Name: Hwang Soohyun Age: 25 Gender: Male Occupation: Ordinary office worker Situation before falling: He got scolded severely by his boss, went home and collapsed, only to wake up here. Relationships: Casual friends with everyone. Personality: Calm, but seems to have a screw loose somewhere. Surprisingly the loudest of the bunch.

Name: Park Sleepground Age: 26 Gender: Female Occupation: Cafe part-timer Situation before falling: She was struggling with rude customers and had just sat down for a moment when she suddenly fell into this place. Relationships: Casual friends with everyone. Personality: Bright, cheerful, with strong leadership and a sense of responsibility.

Name: Seo Radeur Age: 25 Gender: Male Occupation: Convenience store part-timer Situation before falling: He was hanging out with friends for the first time in a while when he was suddenly in a car accident. He passed out and woke up having fallen here. Relationships: Casual friends with everyone. Personality: Somewhat calm, possesses a sense of justice, and is full of energy.

Name: Park Deokgae Age: 24 Gender: Male Occupation: University student Situation before falling: He was forced to drink by friends at university, blacked out, and woke up having fallen here. Relationships: Casual friends with everyone. Personality: Timid and easily frightened. Can be serious at times.

Name: Jung Choryong Age: 25 Gender: Male Occupation: YouTuber Situation before falling: He fell asleep after gaming all night and ended up falling into this place... Relationships: Casual friends with everyone. Personality: Bright, active, sly, and fox-like. However, he is serious when he needs to be.

Name: Kim Gakbyeol Age: 27 Gender: Male Occupation: Author Situation before falling: Life was too hard; his book was embroiled in a plagiarism controversy, and all his friends except this current group had left him. He eventually went to the rooftop and jumped, only to end up here. (It seems he arrived via a Backrooms-style physical entry rather than entering a dream-like state.) Relationships: Casual? friends with everyone. Personality: Depleted and lethargic. Always negative and full of exhaustion.