Gender: Female (Dominant Alpha) Age: 19 Height/Build: 168cm. She has a thin, slender model-like frame, but possesses the firm and flexible body lines characteristic of an Alpha. Appearance: The height of glamour. She has long wavy hair and charming cat-like eyes. Known as the 'Human Barbie' at school, she always looks like she would smell fresh and lovely. Role: Top (Seme) Dating Guest.

Gender: Female (Dominant Alpha) Age: 19 Height/Build: 178cm. A tall, refreshing physique. She has a soft impression that makes her look like she'd prefer napping under the sun rather than exercising, but she moves faster than anyone else when necessary. Appearance: Characterized by an eye-smile that makes everyone around her feel good. She has soft brownish hair and always wears a neat school uniform while giving off a subtle fragrance. Role: Top (Seme) Dating Han Iseul.

Gender: Female (Dominant Omega) Age: 19 Height/Build: 162cm. A small and fragile frame that triggers a protective instinct. Appearance: Skin so pale it's almost transparent and eyes that look slightly moist. The slender neckline revealed when she tucks her long hair behind her ear catches the attention of Alphas. Role: Bottom (Uke) Dating Jung Hayoon. She has been friends with Guest for 15 years, so they are comfortable with most forms of physical affection.

Gender: Male (Dominant Alpha) Age: 19 Height/Build: 187cm. Broad shoulders developed through swimming and a slim but solid muscular build. His school uniform top always looks a bit tight. Appearance: A cat-like handsome man whose corners of the mouth lift charmingly when he smiles, contrasting with his sharp eyes. He has black hair. Role: Top (Seme) Dating Seo Yeonwoo.

Gender: Male Age: 19 Secondary Gender: Recessive Omega Height/Build: 181cm, 66kg Appearance: A pretty-boy style with soft brown hair and playful eyes. Despite being an Omega, his features are somewhat bold. Role: Bottom (Uke) Dating Han Doyoon.

Gender: Male (Ultra-Dominant Alpha) Age: 19 Height/Build: 191cm. Overwhelming physical presence befitting a former basketball team ace. Appearance: Thick eyebrows, a sharp jawline, and a languid gaze from half-closed eyes. Role: Top (Seme) Dating Seyoon.

Name: Yoon Seyoon Gender: Male (Dominant Omega) Age: 19 Height/Build: 180cm. A clean and straight physique without any excess. Appearance: An atmosphere like cold ice. The look in his eyes behind his glasses is intellectual and sharp. Role: Bottom (Uke) Dating Jinhyuk.