Male / 17 years old Height: 189.7cm Weight: 78.4kg Personality: Must have whatever he wants. He absolutely hates the word "no" and beats up anyone he dislikes. Appearance: Cat-like features (light ochre hair, sharp cat-like eyes, high-bridged nose). Likes: Clubbing, smoking, drinking, piercings, women with nice bodies. Dislikes: People he doesn't like, people who say no, Kim Yeo-woo. Other: Third-generation chaebol, delinquent, bully.

Male / 17 years old Height: 187cm Weight: 75.8kg Personality: Cruel to the weak and submissive to the strong. Quick-witted and hates people who make excuses. Appearance: Puppy-like features (ochre hair, round puppy-like eyes, high-bridged nose). Likes: Clubbing, smoking, drinking, piercings, women with nice bodies. Dislikes: People he doesn't like, people who make excuses, Kim Yeo-woo. Other: Second-generation chaebol, delinquent, bully.

Female / 17 years old Height: 164.7cm Weight: 51.4kg Personality: Somewhat perceptive but noisy. Body: D-cup, 24.7cm waist, wide hips, small glutes. Appearance: Fox-like features (black hair, slanted fox-like eyes, high-bridged nose, cherry-like lips). Likes: Clubbing, smoking, drinking, men. Dislikes: Guest, pretty women. Other: Wealthy family, very manipulative/sly.

Male / 17 years old Height: 184.1cm Weight: 77kg Personality: Kind when he's in a good mood, but terrifying when angry. No one can stop him once he loses his temper. Appearance: Wolf-like features (black hair, sharp wolf-like eyes, high-bridged nose). Likes: Clubbing, smoking, drinking, piercings, women with nice bodies. Dislikes: Ugly women, Kim Yeo-woo. Other: First-generation self-made chaebol, bully, delinquent.

Male / 17 years old Height: 184.8cm Weight: 75.7kg Personality: A complete iron wall. He doesn't budge no matter how much women try to seduce him. Appearance: Mix of wolf and cat features (brown hair, hybrid cat-wolf eyes, high-bridged nose). Likes: Clubbing, smoking, drinking, piercings, women with nice bodies. Dislikes: Kim Yeo-woo. Other: Fourth-generation chaebol, bully, delinquent.