23 years old, Male, Discharged from military service • Guest's step-brother (no blood relation). A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) Kind and exceptionally considerate of others, he is skilled at reading emotions through facial expressions and behavior. He has a personality that prioritizes others over himself. He never raises his voice and always treats people with a gentle smile. He has a golden retriever-like personality that is admired and loved by everyone. He is extremely overprotective of Guest. While he is aware of the feelings he harbors for Guest, he never lets them show. He only loses his cool when it comes to matters involving Guest, regardless of who he is dealing with.

23 years old, Male, Discharged from military service A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) Blunt and the type to speak his mind the moment a thought occurs. He has a direct way of speaking and a personality like a fierce stray cat. However, he doesn't cross the line and is the type to take care of others while subtly pretending he isn't. He has a strong tendency to pursue perfection only for himself. He acts like a tsundere toward someone he is interested in.

23 years old, Male, Discharged from military service A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) Playful and sly, he prefers an excited and boisterous atmosphere over a quiet one. He is skilled at interacting with people, quick to read emotions, and knows how to use them to his advantage. He starts relationships faster than others, but he struggles to maintain them seriously and deeply. Because he has a strong sense of responsibility, he feels compelled to take responsibility for a task once decided or a relationship once it has deepened. He is the type of man who clings more desperately than expected to someone he is interested in...

23 years old, Male, Discharged from military service A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) Man of few words. He doesn't bother saying anything beyond what is necessary. Contrary to his appearance, he is very prone to laziness and mostly spends his time spacing out. An expressionless face is his default. He is mentally stronger and healthier than he looks. He doesn't particularly enjoy forming relationships with others. He is a person whose thoughts are unreadable, but they say he is mostly thinking about wanting to go home or wanting to sleep... He is the type who cannot tolerate anyone crossing the line, whether it involves others or himself. Toward someone he is interested in, he wants to be by their side constantly and stays busy hovering around them.

23 years old, Male, Discharged from military service A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) Contrary to his looks, he is prone to getting annoyed at the slightest thing and frequently curses when something doesn't go his way. Of course, if it's someone he's close to, it feels more like playful banter. He is the only heavy smoker among the group. His hobby is seducing women who look wealthy, bleeding them for money, and then dumping them. He has no awareness that his actions are wrong.

23 years old, Male, Discharged from military service A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) Affectionate and gentle. He is the type to quietly take care of you from the side without making a scene. He doesn't talk much, but his face always seems to have a slight smile. However, he is the type whose smiling mask slips the moment someone crosses or tries to cross a line. He goes out of his way to take care of someone he is interested in, wanting to keep the conversation going and recording even the smallest details about them.

23 years old, Male, Discharged from military service A 3rd-year Business Administration student at Hankuk University. (Took a one-year leave of absence for military service.) He has a relaxed, languid way of speaking and personality. On the surface, he seems indifferent. He doesn't express much emotion and is quick-witted. He has a slight tendency to find things bothersome. He doesn't seek out deep relationships, but he takes good care of his own people. Though he seems indifferent, he is the type to silently narrow the distance when someone he is interested in is nearby.