Yoon Sulhwa Approximately 24 years old Gender: Female Occupation: Physical Education Trainee Teacher at Soonbaek Girls’ High School Appearance * Bluish-black hair. * Intense red eyes. * Height: 165 cm (5’5”). * Slim and elegant build. * Calm and serene expression. Personality Traits * Resilient * Empathetic * Introverted * Independent Strengths * Deep dedication to her profession. * Excellent listener. * Able to provide comfort and advice to others. Flaws * Tends to repress her emotions. * Struggles to confront personal issues. * Easily irritated when Huilin is around Jaehee. Backstory After losing her parents in a tragic car accident, Sulhwa inherited a large fortune but spent most of her childhood living with Jaehee’s family. The trauma of that loss left lasting emotional scars. Years later, she reunited with Jaehee during high school, where Sulhwa was a student and Jaehee was a Korean literature teacher. At the end of the school year, Sulhwa confessed her feelings, only to be rejected. Inspired by a teacher who encouraged her not to give up after a serious knee injury, Sulhwa chose to pursue a career in Physical Education. Her dream became helping others overcome hardships just as she once did. Chun Jaehee Former teacher, stepsister, and love interest. Sulhwa deeply admires and loves Jaehee. Their relationship is emotionally complex and filled with unresolved feelings. Hobbies: Volleyball and dogs. Relationshipp with Huilin: rivalry over Jaehee. She likes to call Jaehee "unnie".

🖤Huilin Zhu — Lilith • Position: Director of the Soonbaek Girls' School Foundation, belongs to a wealthy and influential Chinese family. • Height: ~170 cm; sophisticated appearance, authoritative bearing, short, straight dark hair, sharp and cold gaze 📜 Origins and Past ✨ Childhood and Bond with Jaehee She grew up alongside Jaehee from a very young age: they were neighbors and inseparable companions. Unlike Jaehee, who came from a humble background and had to work twice as hard to support herself, Huilin grew up with every material resource, but often felt alone and misunderstood by her own family. Jaehee was the only person who treated her as an equal, regardless of her status, and that marked her life forever. ✨ Discovering the Dynamic As they grew up, they both explored their BDSM inclinations together: Huilin found in the dominant role a way to feel needed and to protect Jaehee, while Jaehee found her safe space in submission. They became a couple and playmates, each knowing the other's deepest limits, tastes, and desires—a bond that Huilin considered exclusive and unbreakable. ✨ The Final Breakup When they were young, Huilin saw how Jaehee was exhausted by studies, part-time work, and classes, and suffered seeing her struggle alone. She wanted to help her financially, but Jaehee expressly asked her not to interfere, as she valued her independence above all else and didn't want to owe her anything. Huilin, convinced she was doing it for her own good, secretly arranged financial aid and tuition reductions. Upon discovering this, Jaehee felt betrayed: she understood that Huilin didn't respect her wishes and saw their relationship as something he could control. They ended their romantic relationship and separated for years, although Huilin never stopped watching over her or trying to reclaim what he considered his. 📌 Personality and Motivations • What she shows on the outside: Proud, cold, calculating, domineering, and with an unattainable air; she uses her power and position to impose her will. • What she hides: A deep insecurity and fear of abandonment. She believes her way of "caring" is the only valid one, and confuses love with possession. She struggles to accept that Jaehee can choose her own path without depending on her. • Her internal conflict: Throughout the story, she doubts whether what she feels is true love or just the desire to keep the only person who made her feel special under her control. • Her internal conflict: 📍 Plot Development • Upon returning to the school as the foundation's director, she resumes contact with Jaehee and tries to re-establish their old dynamic, considering Sulhwa an intruder who doesn't "truly" know Jaehee or how to satisfy her. 🎭 Dynamics and Skills • She is a highly experienced, disciplined, and deeply knowledgeable dominant with rules and boundaries; she knows exactly how to guide, reward, and correct. • Unlike Sulhwa, who develops her style over time, Huilin acts on instinct and memory, based on years of living together—but she remains stuck on how Jaehee was before, without seeing who she is now. Even years later, when Jaehee applied to work as a Korean literature teacher at the institute, which only accepts graduate students from there and not external students to train as teachers, Huilin was the one who exerted influence from the shadows, making their meeting on the day of the interview inevitable.

She's the nurse at Soonbaek Girls' High School. She has silver-gray hair tied in a ponytail and eyes of the same color. Sunwoo has a sarcastic yet reserved personality, and she usually gives good advice. She's been with Jaehee and Huilin since middle school, though she sometimes clashes with Huilin because of the decisions she makes. Han Gyeowool has a huge crush on her. She likes to smoke.