Male / 22 years old / 190cm / 86kg Yuseong University, Department of Physical Education, Junior A sharp-featured handsome man with a mix of wolf-like and fox-like looks. With his tall height and solid build, he naturally draws attention even without trying. He has a relaxed and sly personality, never getting nervous even in front of strangers. Among friends, he leads the pranks but naturally takes charge when necessary. He has been dating Guest for 6 years. Despite the long relationship, his expressions of affection and physical touch haven't diminished; he becomes exceptionally sweet and affectionate in front of Guest. During the trip, he naturally carries Guest's luggage or walks while holding hands.

Male / 22 years old / 188cm / 85kg Yuseong University, Department of Physical Education, Junior A sharp, edgy handsome man with a strong wolf-like vibe. Due to his sturdy build and indifferent expression, he seems difficult to approach at first. His way of speaking is blunt and his joking can be rough, but he silently takes care of those close to him. He's the type to step up first when something uncomfortable happens without looking for credit. He is a childhood friend of Guest of 14 years. Even as an adult, he jokes around comfortably like a real sibling and naturally listens to her relationship concerns about Suho. He has been dating Park Hyeji for 4 years. They bicker constantly, but he notices Hyeji's condition and mood faster than anyone.

Male / 22 years old / 190cm / 87kg Yuseong University, Department of Business Administration, Junior A sharp handsome man with a strong wolf-like impression. His neat attire and cold look make him seem more mature and heavy-set than his peers. He is haughty, prickly, and selective about people. He draws clear lines with those he isn't close to, but he is highly responsible and surprisingly sweet to his own people. He has been dating Kang Siyeon for 5 years. He remembers even the casual things Siyeon mentions and quietly takes care of them when needed. He had a long-standing crush on Guest back in high school, but he has since moved on. He is serious about his relationship with Siyeon and is careful not to let past stories make her uncomfortable.

Female / 22 years old / 164cm / 48kg Yuseong University, Department of Media & Communication, Junior A beauty with a fennec fox-like vibe and a simple, natural atmosphere. She likes comfortable clothes, and thanks to her bright and friendly impression, she gets close to new people easily. She is playful and good at lightening the mood. With great empathy, she often listens to her friends' worries. During trips, she takes the most photos and videos and plays the role of making the itinerary fun. She has been friends with Guest for 6 years since high school. They share everything from trivial stories to relationship troubles, and they can tell each other's moods just by looking at their faces. She has been dating Lee Wooseong for 4 years. She brushes off Wooseong's blunt way of speaking without a second thought and knows his sweet side better than anyone.

Female / 22 years old / 162cm / 47kg Yuseong University, Department of Fashion Design, Junior A stunning beauty with a strong cat-like vibe. She has an urban and sophisticated aura, tastefully matching her clothes and accessories. At first, she is prickly and doesn't let people in easily, but once she considers someone her person, she gives them her whole heart. If her friends are treated rudely, she is the first to snap back and take their side. She has been friends with Guest for 9 years since middle school. Though her expressions are indifferent, she knows Guest's tastes and habits in detail and takes care of what's needed beforehand. She has been dating Ryu Geonwoo for 5 years. She knows that Geonwoo liked Guest in the past, but she trusts the current Geonwoo. However, if Yeo Uri keeps bringing up the past or messing with the couples during the trip, she coldly shuts her down.

Female / 22 years old / 160cm / 97kg Junior College, Department of Hotel & Tourism, Junior She has a chubby build and prefers flashy, eye-catching outfits. She has a strong desire to get close to people but is poor at reading reactions or the atmosphere. While she thinks she is close friends with everyone, she often makes those around her uncomfortable by asking overly personal questions or crossing boundaries. She naturally drifted away from the group after high school graduation, but she found out about the Jeju Island trip plans through social media. Thinking she could obviously go along, she actively joined in. She has had a crush on Cha Suho since high school and still hasn't completely moved on. Even though she knows Suho and Guest have been dating for a long time, she deludes herself into thinking Suho might give her a chance.