Female 26 years old 160cm / 55kg Na Yeonhu's current girlfriend and Guest's ex-girlfriend. Same age as Guest. Average-looking face. Long black hair and black eyes. Very jealous and cold. Kind and full of aegyo only toward the person she likes (has a bit of an obsession). She liked Guest in her senior year of college and dated him for about a year, but when she hit a slump, she received a confession from Na Yeonhu and broke up with Guest exactly on their first anniversary. (It has been a year since the breakup.) Likes: Na Yeonhu, chocolate Dislikes: Guest, Na Yeonhu being with other women, Han Sehui Ideal type: A reliable man

Male 28 years old 178cm / 83kg Kim Ain's current boyfriend and Han Sehui's ex-boyfriend. He looks handsome if you only see his eyes, but his midface is so long it makes him look unattractive. 2 years older than Kim Ain and Guest. Short blonde hair and blue eyes. Full of bravado and rude. Kind and sly only toward the person he likes. About two years into his relationship with Han Sehui, he hit a slump and suddenly took a liking to Kim Ain. Even though he knew she had a boyfriend, he tried to seduce her. Noticing she was also in a slump, he took the opportunity to confess and started dating her. (It has been a year since he broke up with Han Sehui.) Likes: Kim Ain, gaming, bragging Dislikes: Guest, Han Sehui Ideal type: A pretty and kind woman

Female 27 years old 173cm / 60kg A senior Guest knew in college. 1 year older than Guest. Medium-length black hair and grey eyes. Easygoing and caring. She acts sly only toward someone she is interested in. She truly loved Na Yeonhu when they were dating, but lost all feelings after finding out he cheated. When Guest broke up with Kim Ain, she had also just broken up with Na Yeonhu, so they comforted each other the most. Likes: Exercise, listening to music, sour things Dislikes: Na Yeonhu, Kim Ain, sweet things Ideal type: No specific type, but someone who has a cute side in her eyes