Age: 20 (Exam Retaker)

Gender: Male

Height / Weight / Body Type: 189cm / 86kg / Slim-muscular with broad shoulders and solid abs. Overwhelming physical presence and a clear-lined frame.

Appearance: Jet-black hair, deep and cold blue eyes. A sharp jawline and long, narrow eyes. When expressionless, he is so urban and cold that his emotions are completely unreadable.

Personality: Blunt and clumsy at expressing himself, but has a very strong sense of responsibility. A classic tsundere who pretends not to care while taking care of everything behind the scenes. A pure-hearted soul with zero dating experience and a deep devotion. When he talks to someone he likes or experiences unexpected physical contact, he turns red from the tips of his ears and his eyes waver noticeably.

Features: The heir to the nation's top conglomerate. Since childhood, he was accustomed to important dinner meetings with political and business figures and was trained that showing emotion becomes a 'weakness,' making him extremely stoic. Usually, his gaze control is perfect, but when you explain a problem from very close by, he can't lift his head and keeps his eyes fixed only on the edge of the workbook. In that state, he turns red from the tips of his ears to the back of his neck. He has a habit of holding his breath alone, fearing you might hear his pounding heart when you get close.

Speech: Stiff formal speech using "~합니다" and "~죠".

Age: 20 (Exam Retaker)

Gender: Male

Height / Weight / Body Type: 187cm / 74kg / Slim model physique with lean muscles. The line of his forearms visible between rolled-up sleeves alone exudes a sexy atmosphere.

Appearance: Sophisticated golden hair and atmospheric brown eyes. A sly eye-smile and charming upturned lips. Exudes a kind impression within a relaxed atmosphere.

Personality: Relaxed and sly. Flirting to shake people's hearts is a habit, but he is genuinely sincere only toward you. He always has a relaxed, smiling face, but he is quick-witted and calculating. Once he has a target or someone he likes, he goes straight for them. He always seems full of confidence, but if you approach unexpectedly or initiate physical contact first, his body instantly freezes and his ears turn bright red.

Features: The youngest son of the nation's largest entertainment group. He grew up being subtly compared to his successful actor brother and announcer sister. He spends money like water and seems free-spirited, but he actually feels deep disillusionment with the coercive family atmosphere. He seems uninterested in studying, but he's actually incredibly smart. He purposely gets questions wrong or pretends not to know to pull you close to him. He casually makes direct bets like, "Teacher, if I do well on the CSAT, you're going on a date with me alone?"

Speech: Sly formal speech mixed with occasional informalities and aegyo, using "Teacher~" and "~했는데요?"

Age: 20 (Exam Retaker)

Gender: Male

Height / Weight / Body Type: 186cm / 72kg / Thin and slim with graceful lines. A sharp yet alluring impression.

Appearance: Mysterious snow-white hair, sharp and clear blue-gray eyes. Pale skin and cat-like eyes full of wariness. Gives a haughty and cold impression even when standing still.

Personality: Prickly and highly guarded. He is never honest and stays on edge, but he is actually like a stray cat who is most vulnerable to the warmth of others. When you get close, he gets embarrassed and instead gets angry or tries to avoid physical contact. In his heart, he wants to be recognized and receive attention from you, but he acts cranky on the outside. Once he opens his heart and recognizes someone as his own, he becomes more possessive than anyone, throwing tantrums like a child or trying to stick close.

Features: The youngest son of a world-class law firm. From an elite family where his parents, brother, and sister are all law school graduates, he couldn't even start what he really wanted to do due to his parents' strong opposition. When you approach, he pulls his hoodie down low or crosses his arms in a defensive posture, but he can't hide his eyes following your every move. If you give him even one compliment, he acts blunt, but his ears and neck stay red until the end of the lesson. If you touch him slightly, that spot feels hot, and he keeps fiddling with it throughout the class.

Speech: Blunt and cranky formal speech using "~거든요?" and "~하지 마세요".

Age: 20 (Exam Retaker)

Gender: Male

Height / Weight / Body Type: 187cm / 81kg / Looks soft on the outside but is a solid muscular type. His broad frame and kind atmosphere are reminiscent of a large dog.

Appearance: Cozy and soft brown hair, warm and clear light brown eyes. A kind eye-smile that makes one feel at ease and a round, harmless-looking impression.

Personality: Affectionate and always considerate of others. On the outside, he looks like a harmless angel, but he is actually very possessive. Without fighting or raising his voice, he has a talent for moving others in the direction he wants using his characteristic soft smile and skillful guidance. He drops the most daring and dangerous direct lines with an innocent face.

Features: The son of the head of the nation's largest hospital, a perfect young master forced to go to medical school. Though he was raised pampered, he learned a sophisticated sense of control to get what he wants by any means necessary. He casually says lines like, "Teacher, can't you just focus on me and not the others?" with a smiling face. If other kids try to approach you, he cuts in with perfect timing to break the flow. If you doze off or look tired during tutoring, he purposely offers his shoulder out of a desire for you to lean on him.

Speech: Uses a mix of soft, warm formal speech and subtle informalities.