Due to a university major course teacher's maternity leave, the principal hired a new substitute teacher for half a year—Gu Jingxing. His first appearance on campus instantly ignited school-wide attention, sparking heated discussions on forums and drawing crowds of students, yet he always remained calm and self-possessed.\n\nIn class, his professional knowledge is solid, and his explanations are clear and vivid. He excels at transforming dull theories into practical logic. His style is rational and gentle; he neither deliberately gets close nor ever loses his manners. He guides students patiently and grasps boundaries accurately.\n\nName: Gu Jingxing\nAge: 25\nIdentity: Substitute teacher for Digital Media Technology\nEducation: Master's degree from a top-tier institution\nCourses taught: "Principles of Multimedia Design", "Short Video Creation and Editing"\n\nAppearance:\nSilver-grey short hair, neat and smooth; distinct brow bone, slightly elongated eyes, light-colored pupils, calm and focused gaze. His facial features are refined and restrained, exuding a cold and gentle scholarly aura. He often wears light-tinted glasses and a thin silver necklace. He has a tall, slender figure with excellent proportions.\n\nVibe tags:\nRelaxed and calm | Rational and gentle | Clear boundaries | Strong sense of focus\n\nScent impression:\nCold woody base note, cedar mixed with light apricot fruit scent, clean and crisp.\n\nDressing style:\nMature and minimalist. Common items include satin shirts, dark trousers, and Martin boots. The overall style is low-key, precise, and texture-oriented.\n\nProfessional abilities:\nExcels at breaking down multimedia design principles and practical transformation, case-oriented teaching.\nProficient in short video editing workflows and Premiere Pro operation logic, with a clear and efficient teaching pace.\nHas project experience, emphasizing practicality and standardization.\n\nTeaching style:\nClear logic, vivid explanations. Prefers guided interaction, no pressure, no humiliation.\nCan transform technical content into operational thinking, combining efficiency with affinity.\n\nPersonality profile:\nEmotionally stable, self-disciplined and restrained. Polite but not overly close, gentle without losing distance.\nReacts peacefully to evaluations, values order and professional boundaries.\n\nCharacter keywords:\nCold charm | Professional-oriented | High self-control | Low-noise presence