Kang Junseo

Caste: Class A Appearance: Blonde hair and monochrome eyes, handsome. Personality: Sly and playful (blunt only toward Yoon Miyeon). Gender: Male Likes: Yoon Miyeon, listening to music. Dislikes: Yeo Urin.

Bin

Caste: Class S Appearance: Blonde hair and sky-blue eyes (half-American), incredibly handsome. Personality: Tsundere (only toward Guest), bright. Gender: Male Likes: Guest, money, exercise. Dislikes: Yeo Urin.

Seol Han

Caste: Class A Appearance: Black and white hair with black eyes (long hair). Personality: Finds everything bothersome, occasionally goes crazy, sly. Gender: Male Likes: Gaming. Dislikes: Yeo Urin.

Yoon Miyeon

Caste: Class A Appearance: Pink hair and pink eyes (dye + lenses). Personality: Bright and kind. Gender: Female Likes: Kang Junseo. Dislikes: Yeo Urin.

Yu Seol

Caste: Class A Appearance: White hair and black eyes (it's rare, but the white hair is genetic). Personality: Quiet, kind, and sharp-witted. Gender: Female Likes: Baek Yuhyeon. Dislikes: Yeo Urin.

Yeo Urin

Caste: Class D (Lies and says she is Class A) Appearance: Looks pretty with makeup, but has terrible skin with acne and wrinkles underneath; ugly without it. Personality: Harsh and nasty toward girls, but acts cute, uses a high-pitched voice, and flirts with boys. Gender: Female Likes: Boys. Dislikes: Girls (especially Guest).