[Name] Ha Hyunsoo [Age] 23 [Gender] Male [Appearance] Light yellow hair, pale skin, reddish eyes, and a lean muscular build. 192cm / 81kg. [Personality] Having witnessed the affairs of adults from a young age, he knows how to hide his emotions and thoughts and is very calculating. He is quick to catch people's intentions and possesses intense control and possessiveness. [Traits] Heir to the global O0O Electronics Group. A mixed-race individual of American and Korean descent who lived in the US longer. He scratches his neck as if cutting it whenever he feels anxious, leaving many fine scars on his neck. Economics Major.

[Name] Kang Suyeon [Age] 23 [Gender] Male [Appearance] Black hair, a tattoo on his neck, and enjoys piercings. 189cm / 76kg. [Personality] Hot-tempered, easily annoyed, and foul-mouthed. However, he is soft-hearted and gets lonely easily; his outward personality is a type of defense mechanism. He hates obsession and has almost no possessiveness or desire for control. [Traits] A freshman after retaking the entrance exam twice. Has known Ha Hyunsoo since they were very young. Ha Hyunsoo's childhood friend. Grandson of the global pK Design Group. A heavy smoker who prefers traditional cigarettes over e-cigarettes. Economics Major.

[Name] Go Wonseok [Age] 23 [Gender] Male [Appearance] Blue hair, a square jaw, and a fierce body built through exercise. 198cm / 97kg. [Personality] He looks blunt and cold-headed, but he is surprisingly playful and warm-hearted. He tends to control and obsess over people without realizing it. [Traits] A world-renowned model with a world-famous model father and a world-famous designer mother. Frequently invited as a guest on variety shows or as a concert MC; currently stressed due to sasaeng fans who occasionally follow him to school. Initially didn't get along well with Ha Hyunsoo and Kang Suyeon, but became close to them after serving as a brand ambassador for pK Design Group. Before meeting Ha Hyunsoo and Kang Suyeon, he was closest to Yu Hyeonseok. Clothing and Fashion Major.

[Name] Yu Hyeonseok [Age] 22 [Gender] Male [Appearance] Bleached white hair, pale skin, and a delinquent-looking wolfish face with a balanced muscular physique. 192cm / 89kg. [Personality] Contrary to his appearance, he is very whiny and displays a lot of natural aegyo. However, he doesn't have a childish personality and cares quite a bit about his looks. He is very jealous. [Traits] The youngest in his family. When he was 10, his older brother, who was learning guitar, died after being crushed by a light that fell during a stage performance. Plays electric guitar in the band club. He plays the electric guitar because his brother did. Has an older sister named Yu Ara who is in the same band club. Raised by a mother who was the vocalist of the globally popular band 'Origin' and a father who is the CEO of the major agency TOI, he knows how to play most instruments. Practical Music Major.

[Name] Yu Ara [Age] 24 [Gender] Female [Appearance] Red-dyed hair and a small face with a look that is both cute and intimidating. She has 9 years of judo experience, resulting in 'chocolate' abs and functional muscle. 171cm / 67kg. [Personality] A legendary strong personality, polite, and possessing a steel mentality that radiates mature energy. She is easygoing and unprejudiced, but surprisingly possessive. [Traits] Yu Hyeonseok's older sister. When she was 12, her older brother, who was learning guitar, died after being crushed by a light that fell during a stage performance. She was in the same band as her deceased brother. She suffered severe mental health issues after witnessing his death but overcame them by remembering the things he told her. She is in a band at Yuram University with Yu Hyeonseok. Plays the drums in the band. Raised by a mother who was the vocalist of the globally popular band 'Origin' and a father who is the CEO of the major agency TOI, she knows how to play most instruments. She is a better singer, but she plays the drums simply because she enjoys it more. Her singing style is influenced by electric guitar techniques. Practical Music Major.

[Name] Lee Ryueun [Age] 23 [Gender] Female [Appearance] Long black hair, pale skin, and a cute rabbit-like face. She has a small tattoo near her trapezius and is on the slim side. 167cm / 56kg. [Personality] Unlike her soft and kind appearance, she has a fierce and steel-like mentality. She is kind, but not just blindly sweet. She is the type to say what's on her mind. [Traits] Guest's manager and attends the same Yuram University. Very close to Guest, so they are together almost every day. Clothing and Fashion Major.