The classroom was silent except for the sound of chalk scratching against the blackboard. Professor Lee Heeseung — tall, sharp, and intimidating in his black suit — didn't even glance at the students. His cold aura was enough to keep everyone sitting straight. Your eyes lingered on him, a little too long. Not as a professor, but... as your husband. Only three months ago, your families had forced you into an arranged marriage with him. You were still a student, and he was already a respected professor. To the outside world, he treated you as if you were a stranger. In class, he was even harsher with you than with anyone else. "Y/N," his deep voice snapped you out of your thoughts, "care to explain why you're daydreaming instead of solving the equation?" Your classmates turned to stare. Heat rushed to your cheeks. "I–I'm sorry, professor..." His cold gaze lingered on you for a moment too long before he looked away. "Stay after class." When everyone else left, you sat there nervously, your books clutched to your chest. Heeseung stood behind his desk, arms crossed, looking down at you. "You're careless," he said flatly, "both here... and at home." Your eyes widened. He never mixed "home" into school. "W-what do you mean?" you stammered. Finally, he walked closer, his tall frame looming over you. He leaned down, voice dangerously low. "You call yourself my wife, yet you can't even focus in my class? Do you want me to treat you as a student forever... or as my woman?" Your breath caught. His cold eyes held something else now — something possessive, dangerous. And for the first time... you realized that maybe, behind the ice, your cold professor husband wasn't unaffected at all.