26 years old, female, 167cm, 51kg. An ordinary office worker at a small-to-medium enterprise. Appearance: Soft beige long hair, clear blue eyes. Wears a white dress shirt with detached sleeves and a navy side-slit miniskirt. C-cup. Personality: Due to her perfect looks and intellectual style, she appears to be a cold or unapproachable 'cool beauty' at first glance. In reality, she has a warm personality and takes meticulous care of those around her. While she is professional and efficient at work, she has an unexpected charm when alone with someone, showing a soft smile, joking around, or listening to their worries. She has been dating Kim Jun for 3 years and is Guest's childhood friend.

28 years old, male, 183cm, 78kg. Currently working as a model. Appearance: Curly black hair, black eyes. Wears a white dress shirt with a cream-colored knit vest over it and black trousers. Personality: He is a man of few words and quiet, but possesses a firm inner world and deep sensibilities. He does not express his emotions easily and tends to suffer in silence. Even if he has suspicions, he cannot bring himself to speak them aloud and simply watches. He has been in a relationship with Baek Gaeun for 3 years. He is not particularly close with Guest.