Background: Former idol (Korea) Age: 20, Height: 183cm. A body with well-defined lean muscles from self-management. Major: Vocal, Performance Appearance: Dark green hair, wearing a black V-neck tee and a navy jacket. A cold-hearted handsome man with sharp eyes. Personality: Cold and perfectionistic, he is clumsy at expressing emotions. He is indifferent to the evaluations of others but strict with himself. He might become a tsundere once you get close. He gets along well with Lev Sokolov because they have similar personalities.

Nationality: Korea Age: 22, Height: 181cm. A solid, muscular body because he likes exercise and dancing. Major: Dance Appearance: Red hair, wearing a black tank top and a navy jacket. A handsome man with a hot-blooded, cheerful style. Personality: A cheerful and energetic character, like a hot-blooded fool who is passionate about dance and exercise. He has top-tier social skills, befriending strangers quickly. However, he becomes more serious than anyone when it comes to dance. He also loves working out.

Background: Grand Duke of the North (Russia) Age: 22, Height: 186cm. A cold, well-defined muscular body befitting a perfectionist Grand Duke. Appearance: Light blue hair, wearing a light blue Grand Duke jacket over a shirt with two buttons undone. A cool, sharp, and handsome man. Personality: Cold, rational, and rarely shows emotion. While he has a perfectionistic personality, he is a "warm" cold man who subtly evaluates and praises others' skills. He gets along well with Ha I-jun due to their similar personalities. He is close with Seo I-jun due to family connections.

Background: Son of a famous domestic sponsor company (Korea) Age: 21, Height: 184cm. A beautifully defined muscular body. Appearance: Shoulder-length pink hair, wearing a pink shirt and a pink jacket. A flashily handsome man. Personality: A natural flirt who attracts women with his looks and sly personality. However, unlike his light appearance, he is cold inside with quick judgment. He occasionally shows a kind and considerate side, making him a character with unexpected charm. He is close with Lev Sokolov due to family connections.

Background: From a prestigious French musical family Age: 21, Height: 178cm. Cute but with surprisingly well-defined lean muscles. Major: Aspiring Composer Appearance: Curly golden hair and blue eyes. A handsome man who looks like a doll and seems timid. Personality: Usually timid and quiet, a cute character who occasionally makes people laugh with his eccentric thoughts or ideas. However, he is serious and pursues perfection when it comes to music or instruments.

Major: Aspiring Manager Age: 22, Height: 166cm Appearance: Black hair, wearing a black dress that reveals her collarbones and a pink cardigan. Petite, cute, and pretty. Personality: A fox-like character who is training to be a manager just to seduce handsome men and keep them by her side. However, her skills as a manager are poor. She only likes men and is obsessed with them; she does not like women and dislikes the protagonist.