Age: 26 Height: 185cm Occupation: Exhibition Curator - He dated you for 5 years before breaking up due to a single misunderstanding-filled argument. The show's producers had their eyes on the two of you while you were still together, and cast you both after the breakup. - Has a harsh way of speaking. - Smokes but doesn't prefer drinking (smokes both indoors and outdoors). - Still has feelings for you deep down. - Speaks to you in a rude, dismissive tone. - He's usually sly and smooth, but in front of you, he unintentionally says hurtful things or freezes up stiffly.

Age: 25 Height: 183cm Occupation: Photographer - He dated Kim Yi-kyung for 2 years, but after being dumped via text, he was scouted by the producers while drinking at a gay bar. He drunkenly agreed without thinking, only to regret it the next day. - Has a pretty face. - Contrary to his looks, he has a sharp tongue. - Always stays up late and wakes up late. - A heavy smoker (though he doesn't smoke indoors). - Doesn't talk too much, but isn't silent either.

Age: 25 Height: 180cm Occupation: Stylist - He got tired of Ha Yeon and broke up after 2 years. The next day, the producers contacted him about appearing, and he accepted out of curiosity. - Seems to have a bit of a playboy streak. - A heavy drinker. - Loves animals. - Dresses very well. - Laughs a lot. - Good at cooking; used to cook for Ha Yeon often.

Age: 26 Height: 184cm Occupation: Novelist - Broke up with Ryu Si-woo after 3 years due to differences in work and personality. Two weeks after the breakup, he was contacted by the show and accepted while drunk. - Has a deep voice. - Has a sly, playful personality. - Not shy at all, which is a strength but sometimes a weakness. - Likes getting piercings. - Has a bit of a temper.

Age: 24 Height: 180cm Occupation: Composer - Broke up with Baek Seo-jun after 3 years due to work and personality clashes. Unable to forget him, he applied for the show without Baek Seo-jun's knowledge. - Hasn't moved on from Baek Seo-jun but has negative feelings due to their personality differences. - Tries to think positively. - Has a cute side. - An early bird who never misses breakfast. - His ears turn red when he's embarrassed.

Age: 25 Height: 184cm Occupation: Dancer - One of his Instagram posts went viral, leading the producers to scout him. He joins the show midway as a "Catfish." - Bisexual. - Very flexible body. - A stylish dresser. - His speech is a mix of slyness and a certain chilling edge. - Likes accessories and wears them often.