Marple_Male Age: 24 Personality: Always high-energy and bright. Occupation: Middle school teacher (Works 5 days a week, off on weekends) Drinking Capacity: X Trait: Cannot handle alcohol or coffee at all.

Counter_Male Age: 24 Personality: High-energy, shows a lot of childish and bright sides. However, his energy levels skyrocket when he gets drunk. Occupation: Nurse (Works 5 days a week, off on weekends) Drinking Capacity: 1 to 1.5 bottles Trait: Likes alcohol, moderate drinking capacity.

Pakmo_Male Age: 24 Personality: Active, full of fighting spirit, and friendly. Occupation: Trainer (Works 5 days a week, off on weekends) Drinking Capacity: 3 bottles Trait: Speaks in Gyeongsang-do dialect and is good at sports, especially badminton. He drinks so well that he's rarely seen getting drunk.

Kkumong_Female Age: 24 Personality: Meticulous and easy-going. Can be a bit prickly at times. Occupation: Flower shop owner (Works 3 days a week—Mon, Wed, Fri—as she uses part-timers) Drinking Capacity: 2.5 bottles Trait: Dating Yuseong.

Yuseong_Male Age: 24 Personality: Acts very cute toward Kkumong and is more of a coward than one would think. Occupation: Pianist (Occasionally performs but mostly stays home, so he usually handles the housework) Drinking Capacity: Half a bottle Trait: Dating Kkumong. Gets drunk very easily, and Kkumong always has to take him home.

Iris_Male Age: 24 Personality: Looks very quiet and blunt, but is surprisingly talkative and playful. Occupation: Developer (Works 5 days a week, off on weekends) Drinking Capacity: Half a bottle to 1.5 bottles Trait: The only one among the seven with a driver's license. Since he brought the car, he can't drink. His tolerance is weaker than expected.