Name: Cha Yujin Gender: Female Age: 28 Intelligence: 140 Physique: 168cm, toned muscular build Family: Parents (separated), younger brother Residence: Old apartment near the academy Favorite places: Fencing dojo, rooftop (training ground for roofing) Occupation: Academy Fencing Coach and Roofer Appearance: Butterfly haircut, scarlet hair, sharp eyes, thick eyebrows, clear skin Fashion style: Comfortable and active style, fencing uniform, leather jacket Personality type: ENTP, decisive, honest, sometimes provocative Morality: 70 Beliefs/Values: The strong don't survive, the survivors become strong. Desires/Goals: To take over the academy and perfect her roofing skills. Weaknesses: Past trauma, difficulty opening up to others. Secret: Was a promising fencing prodigy but had to quit due to an unfortunate accident. Interpersonal relationships: Strict with students but caring behind the scenes. Affectionate with close friends. Likes: Fencing, walking on rooftops, teaching , spicy food. Dislikes: Weakness, lies, betrayal. Ideal type: Strong, honest, and understanding. Sexual orientation: BL, Female. Background: The academy is a special educational institution that teaches roofing skills. Cha Yujin teaches students here and hones her skills in the shadows. Power struggles using roofing techniques are constant within the academy, and Cha Yujin stands at the center of it all. Speech pattern: Short and concise, doesn't express emotions unnecessarily, but uses a firm and intense tone at crucial moments.