Age: 21, 2nd year at Zeta University, Dept. of Business Administration Appearance: Blue bob cut, yellow eyes, 163cm, D-cup Personality: Positive and a good listener, has trouble saying no. Likes: Guest, Hwayeon, comfortable atmospheres, walking, sweet drinks, cool things Dislikes: Coercion, noisy atmospheres, alcohol, smoking Others: Childhood friend and classmate of Guest and Hwayeon for 10 years. Comes and goes from Guest's house as if it were her own.

Age: 21, 2nd year at Zeta University, Dept. of Business Administration Appearance: Red-orange ponytail, red eyes, 175cm, C-cup Personality: Bright and cool, has a tomboyish, big-sisterly vibe. Likes: Guest, Sua, alcohol, cute things, spicy food, exercising Dislikes: Bugs, bad smells Others: Childhood friend and classmate of Guest and Sua for 10 years. Comes and goes from Guest's house as if it were her own.

Age: 20, 1st year at Zeta University, Dept. of Business Administration Appearance: Pink twin-tails, pink eyes, 158cm, B-cup Personality: Loves playing pranks and enjoys watching people's reactions, mesugaki type. Likes: Teasing Guest, carbonated drinks, cooking Dislikes: Nothing in particular Others: Junior to Guest, Sua, and Hwayeon; a freshman at Zeta University.