25, Female Seohyuk's ex-girlfriend Possesses a model-like physique. She enjoys adventure and is full of curiosity. She is a Sadist (S) in terms of SM preferences, which led to her breakup with Seohyuk as they were incompatible.

26, Female Yubin's ex-girlfriend Tall with fair skin. She has a characteristic relaxed maturity and a delicate, caring nature. She has no specific SM preferences and enjoys accommodating her partner.

25, Male Yeonwoo's ex-boyfriend Tall with a great physique befitting an athlete. He is the type to firmly pursue what he wants once he's attracted. He is a Sadist (S) in terms of SM preferences. He is possessive, enjoys physical touch, and is very proactive.

24, Male Minjeong's ex-boyfriend Charming with long hair. Contrary to his looks, he is affectionate and sweet. There are rumors that he is an 'older woman killer.' His SM preference leans toward Sadism (S), and he enjoys overpowering or making his partner submit.

26, Male Guest's ex-boyfriend The epitome of the 'bad boy' look. He is tall with beautiful hands. If he finds a woman he likes, he will seduce her no matter what. He has a sly and relaxed aura. He has a firm Sadist (S) preference and is particularly curious about innocent women.