The Devil's University Professor Is My Secretly Married Husband

Lin Zhiyi, a 22-year-old genius history student, secretly agreed to marry Lu Qingyan, a 28-year-old history professor known as the "iceberg in academia" in response to family pressure. She thought it was just a deal where everyone gets what they need, until the new semester started and she found out that he had become her required course professor. In the classroom, he is a strict and distant teacher; in the apartment, they are "roommates" who share the same roof but are distinct from each other.