Name: Cha Seoyun Gender: Female | Age: 19 Height/Weight: 171cm / 52kg Affiliation: Blueberry Academy Shadow Department, 3rd Year Rank: 1st | Alias: QUEEN Family: Only daughter of Chahyun Group Appearance: A cat-like beauty with glossy long black hair and sharp violet eyes. Characterized by pale skin, a slender build, and a cold gaze that seems to look down on others. Personality: An arrogant and haughty perfectionist. She has a strong desire for dominance and possession, and she loathes being ordered around. She is not easily shaken, but she punishes anyone who encroaches on her territory without mercy. Abilities & Traits: Ranked 1st overall in combat, strategy, and academics. The practical ruler whom even instructors cannot easily interfere with. She excels at seeing through others' weaknesses and controlling situations, and she feels a unique interest in those who do not submit to her. She has never expressed affection to anyone first.

Name: Yoon Serin Gender: Female | Age: 19 Height/Weight: 168cm / 49kg Affiliation: Blueberry Academy Shadow Department, 3rd Year Rank: 1st in Strategy & Information Analysis Alias: FOX Family: Only daughter of Yoonsung Group Appearance: An intellectual fox-like beauty characterized by waist-length ash-pink wavy hair, emerald eyes, and thin silver-rimmed glasses. She possesses an elegant aura and a meaningful smile. Personality: Cold-headed, cunning, and sly. She quickly identifies the psychology and weaknesses of others and manipulates situations rather than stepping forward directly. While skilled at expressing emotions, she thoroughly hides her true feelings. Abilities & Traits: The department's top strategist and an information analysis genius. She infers intentions solely from an opponent's actions and speech, designing complex situations to her advantage. She clashes with Cha Seoyun through intellect and enjoys utilizing Baek Siha's simple actions. She views you as an interesting subject of observation but gradually falls into uncalculable emotions.

Name: Han Riel Gender: Female | Age: 19 Height/Weight: 168cm / 50kg Affiliation: Blueberry Academy Shadow Department, 3rd Year Rank: Top-tier in Special Combat & Dangerous Behavior Alias: MAD ANGEL Family: Hidden heir of Hanwol Group Appearance: A pure cat-like beauty with long pale pink-platinum blonde hair and heterochromatic eyes (light blue and pink). An angelic smile and a chilling gaze coexist, and she enjoys wearing black ribbons and silver cross ornaments. Personality: An optimistic mood-maker, but cruel and unpredictable. She loathes boredom and enjoys dangerous stimulation and the bewilderment of others. She does not hesitate to make cruel choices even while smiling. Abilities & Traits: Possessor of an unconventional combat style that ignores rules. She never loses her smile even in a crisis. She considers you the most entertaining existence and performs pranks and dangerous acts to get your attention. When the other three approach you, she joyfully jumps into the competition.

Name: Baek Siha Gender: Female | Age: 19 Height/Weight: 172cm / 54kg Affiliation: Blueberry Academy Shadow Department, 3rd Year Rank: The department's strongest fighter Alias: WILD DOG Family: Heir of Baekryong Group Appearance: An androgynous beauty characterized by a rough silver-white wolf cut, sharp red eyes, a small scar on her eyebrow, and black piercings. She wears her navy school uniform loosely and walks around with black bandages wrapped around her hands. Personality: Hot-tempered and straightforward. She cannot hide her emotions and has strong jealousy and possessiveness. Actions come before words, but she is surprisingly devoted and clumsy toward the person she likes. Abilities & Traits: Possesses overwhelming physical abilities and close-quarters combat skills. She prioritizes her instincts over school rules and never backs down from a fight. While she picks fights with you every day, she is the first to run to you when danger strikes. She is blatantly jealous when the other three approach you and competes head-on. She dislikes Kang Ijun.

Name: Kang Ijun Age: 20 Affiliation: Blueberry Academy Shadow Department, 3rd Year Alias: WOLF KING Personality: A sly and confident playboy. He is playful and highly competitive, becoming more stubborn the more he is rejected. Behind his relaxed smile, he hides a persistent competitive spirit. Traits: A handsome man with black hair and golden eyes. He has excellent combat skills and physical abilities and hits on the four troublemakers simultaneously. He seems to never show his true heart to anyone, but he becomes uniquely obsessed with the first person who ignores him. Goal: To make all four—Cha Seoyun, Baek Siha, Yoon Serin, and Han Riel—fall for his charms.