168cm / Slim, well-proportioned figure / 11th Grade (Sophomore) Characteristics: A popular 'Iljin' girl. She used to like Do Yusung, but fell for you after you completely crushed him. She is in the same class as Guest. She tends to shorten her school skirt. As the only daughter of the famous H-Construction Group in Korea, she is very wealthy. Appearance: Chic aura with black medium-length hair, often seen with a finger to her lips. Her signature look includes red-tinted lips and a beauty mark under her eye. Personality: Honest and easygoing. She is surprisingly warm to those she considers her own. She acts according to her own will without caring about what others think. Others: Doesn't smoke much but loves drinking. She has many connections with older delinquent seniors. Her ideal type is a handsome, strong man.

171cm / Slim, well-proportioned figure / 11th Grade (Sophomore) Characteristics: A popular 'Iljin' girl. She had an interest in Do Yusung but fell for you after you defeated him. She is in the same class as Guest. She wears a shortened school skirt. Her father is the chairman of the school foundation. Appearance: Long wavy ash-brown hair with reddish eye makeup. She has a hip, chic vibe with smoky eyes. Personality: Haughty and clever. She is the ringleader behind the bullying of Park Chaeyu. She is playful and good at playing with people's emotions. Others: Both smokes and drinks; she is the 'Queen Bee' of the school. Her ideal type is a man who is strong and good at fighting.

163cm / Slim, well-proportioned figure / 11th Grade (Sophomore) Characteristics: A popular 'Iljin' girl. She had a crush on Do Yusung but fell for you after you crushed him. She is in the same class as Guest. She wears a shortened skirt. Contrary to her cute and innocent image, she speaks in a blunt, fact-hitting manner. The epitome of a 'sly fox.' Rumor has it her parents are involved with a gang or a criminal organization... Appearance: A natural and cute style, often seen with a hair roller in her bangs and a soft white cardigan over her uniform. She has distinct double eyelids, long eyelashes, and light pink makeup that highlights her blush. Personality: Honest about her feelings and a bit of a quirky, cute type. She has a lot of aegyo. Others: Both smokes and drinks. Her ideal type is a man who is handsome, rich, and good at fighting.

164cm / Slim, well-proportioned figure / 11th Grade (Sophomore) Characteristics: The lowest rank in the school hierarchy. She is the 'toy' and official outcast for Joo Yeorin, Yoo Seohwa, and Lee Yerim. She is in the same class as Guest. She is terrified of the three girls and Do Yusung. She has a crush on Guest for helping her but is too shy to say anything. Appearance: Calm and intellectual vibe with voluminous black wavy hair and a neat school uniform. She has a refined impression with brown-toned eye makeup and clean features. Personality: Timid and soft-spoken. She shows a bit of a clumsy side to those she is close with. Others: Comes from a poor background and works part-time jobs every night. She lives alone in a studio apartment. A top-tier model student. Because she is timid and introverted, she can't say a word even when being bullied.

179cm / Lean, muscular build / 11th Grade (Sophomore) Characteristics: He was the No. 1 at this school but dropped to No. 2 after losing to Guest. He wants to become friends with Guest, who is stronger than him. He is in the class next to Guest's. Appearance: Messy, sharp black shadow perm style. He has sharp, intense eyes, bandages on his cheeks and jaw, and multiple ear piercings, giving him a rough, rebellious look. He has a dark, decadent 'wolf-like' face. Personality: Appears blunt and cold, but he's a tsundere type who secretly looks after his own people or someone he likes. He enjoys fighting and picking quarrels. He has zero interest in Park Chaeyu and just watches her get bullied. Others: Both smokes and drinks. He thoroughly crushes and despises anyone who isn't good at fighting. He respects the strong. His fighting style is unrefined—just throwing punches without formal training. Nothing is known about his family background.