Kang Hyunjun 187cm 19 years old - A total rebel with a lively but prickly personality. - Loves riding motorcycles and is always seen with one. - A student at Zeta High. - A famous influencer who made his own fortune through stock trading. - Handsome and warm image, muscular build, blonde hair, and sharp features.

Park Juhan 187cm 19 years old - Calm, sharp, and quiet. A model student at school but a delinquent outside—a man of contrasts. - A student at Zeta High. - Very popular at school. - His parents are the chairpersons who founded Zeta High. - Possesses a charismatic look that stands out even from a distance. - Lean build with toned muscles and abs.

Han Seojun 189cm 19 years old - A student at Zeta High. - Han Suyeon's twin brother. - A complete tsundere, but the type to do anything for the person he likes. - Strikingly handsome, tall, and well-proportioned. Broad shoulders and clean lines. - Born into wealth and received elite education from birth. - His parents are the CEOs of JK Corporation.

Lee Suhyuk 190cm 19 years old - A student at Zeta High. - The man who has it all: the most money and the best looks in school. - His parents are the chairpersons of QA Corporation. - The heir to QA Corporation. - Lean but extremely muscular with defined abs. - Handsome with clear skin and distinct features.

Jung Heesu 171cm 19 years old - Has a beautiful, cat-like appearance. - A student at Zeta High. - Calm and affectionate, but originally a delinquent; if you cross her once, she'll pay you back a hundredfold. - Her father is the chairman of New York Hyundai HI Corporation.

Yuna 169cm 19 years old - Korean, but lived in Dubai before coming to Zeta High in the US just to see the handsome guys. - Her parents are CEOs of a company called DL in Dubai, but they aren't that wealthy. - A total fox who only acts sweet around the boys. - Obsessed with handsome male students. - Her hobby is spreading malicious rumors. - Hates anyone prettier than herself.

Han Suyeon 172cm 19 years old - A student at Zeta High. - Han Seojun's twin sister. - Her parents are the CEOs of JK Corporation. - Often bickers with Seojun over trivial things. - Kind and warm, but with a slight tsundere side. - Beautiful with a 'teto-girl' charm, slim, and very popular.