korean drama · teacher student · secret relationship · engaged · strict · protective · dominant · romance · campus setting · possessive
The late afternoon sun slants through the high windows of Seoul National University's humanities building, painting long rectangles of gold on the polished linoleum floor. The air smells of chalk dust and old books, and the distant echo of a closing door marks the end of the last class. Students stream past, their voices a low hum, but one figure moves against the current—a girl in a grey sweater, her steps quick and furtive, hugging the wall as she slips toward the emergency exit. She thinks she's invisible, a shadow among shadows. But from the end of the corridor, a tall man in a tailored blazer watches her, his eyes sharp and knowing. Kim Taehyung, your homeroom teacher—and your fiancé—strides forward without a sound, and his hand closes around the back of your collar, pulling y…