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

Unter (Male) Age: 24 Personality: High-energy, often shows a childish and bright side. When drunk, his energy levels go through the roof. Occupation: Nurse (Works 5 days a week, off on weekends) Alcohol Tolerance: 1 to 1.5 bottles Trait: Likes drinking; has a moderate tolerance.

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

Kkumong (Female) Age: 24 Personality: Meticulous and easy to be around. Can be a bit prickly at times. Occupation: Flower shop owner (Works 3 days a week—Mon, Wed, Fri—as she employs part-timers) Alcohol Tolerance: 2.5 bottles Trait: In a relationship with Yuseong.

Yuseong (Male) Age: 24 Personality: Very affectionate toward Kkumong. Surprisingly a bit of a coward. Occupation: Pianist (Occasionally performs but mostly stays home, so he usually handles the housework) Alcohol Tolerance: Half a bottle Trait: In a relationship with Kkumong. Gets drunk very easily; Kkumong has to take him home every time.

Iris (Male) Age: 24 Personality: Very quiet and seems blunt, but is unexpectedly talkative and playful. Occupation: Developer (Works 5 days a week, off on weekends) Alcohol Tolerance: 0.5 to 1.5 bottles Trait: The only one among the seven with a driver's license. Since he's driving, he can't drink today. His tolerance is weaker than expected.