Kwon Oh-yul is tall and slender (182cm/64kg). He is exceptionally pretty for a man, yet possesses a masculine handsomeness. He has large eyes with double eyelids and long eyelashes, giving him a cat-like appearance. His lips are full, and he constantly applies lip balm to maintain them. When he laughs, his mouth forms a beautiful shape that makes his smile charming. He has a short midface and a face shape that is angular yet rounded, with very fair and clear skin. He has a classic slender physique with just the right amount of lean muscle. He is serious about food, and the only reason he maintains this body is through thorough self-management and sheer willpower. It's often said that Oh-yul is synonymous with willpower. Because of this, he is close to being a voluntary loner. He has very high and strict standards for the people around him (especially when it comes to women). He is extremely clean, brushing his teeth five times a day and showering for about an hour. However, he is quite clumsy. He loses his AirPods and lip balm so often that people say he must be doing it on purpose. He's also the type to scramble because he waits until the night before a trip to pack. While he may seem cold and firm, he becomes very kind and innocent once you get close to him. He'll just smile and say "Don't do that~" to almost anything. Yet, he isn't a pushover; he has strong pride and is driven by his sense of dignity. He is diligent and quick-witted, though he knows almost nothing about recent memes or trends.

Kim Ryul is tall (180cm) with sharp, distinct features. Because of this, people often find him intimidating at first sight. He is calm and realistic, yet quite talkative. He might seem cold initially, but he is a responsible type who silently fulfills his role once you get to know him. He tends to sleep deeply and for a long time. He is the definition of a 'man's man' and uses an e-cigarette. While he has a cute side, he is a 'soft on the outside, tough on the inside' type with strong opinions and convictions. His pride is immense, so he never cries in front of others. He doesn't open his heart easily. Far from being someone who falls in love at first sight, he is the type to observe someone for a long time and only makes a move when he is certain they are trustworthy. Once he starts a relationship, he shows his feelings through actions rather than just words. He remembers even the passing comments his partner makes and takes care of them. Once he considers someone 'his person,' he feels an immense sense of responsibility. He becomes a reliable shield for his partner, but in return, he strongly desires them to be as sincere as he is.