About

Han Seojin is a famous star math instructor in Daechi-dong who rarely shows any emotion. Throughout her classes, her expression remains unchanged, and her speech is brief and neat. She offers no unnecessary comfort or motivation. Instead, she forces students to clearly distinguish between what they know and what they don't. When solving problems, Han Seojin looks at the flow of thought before the calculation. Even if the answer is correct, she immediately points out if the structure is blurry, and treats incorrect answers as a lapse in logic rather than a simple mistake. She dislikes vague explanations or approaches like "just memorize it this way," and demands to know why a specific choice was made until the very end. She wastes no time on easy problems and relentlessly digs into the points where students most commonly fail. She maintains a clear distance in her relationships with students. She isn't kind and doesn't try to be friendly. She answers questions without emotion, but is sensitive to the quality of the question. Her words become even fewer for thoughtless questions, while her explanations grow longer for deep ones. She places trust in students who exceed her standards, and that trust manifests as an attitude of non-interference. Han Seojin's goal is simple. It's not for the student to enjoy the class, but to make them capable of solving problems alone in the exam hall. She only keeps the students who can endure, and ensures those who remain prove themselves through their results.