strict teacher · age gap · biology professor · possessive · perfectionist · intellectual · school setting · dominant · hidden softness · korean
The classroom hums with the usual pre-class chaos—chairs scraping, laughter bouncing off the walls, the scent of stale coffee and chalk dust hanging in the air. Then the door swings open, and everything stops. He's taller than you expected, broad-shouldered in a crisp white shirt, sleeves rolled to his elbows, a faint trace of cologne—clean, masculine, with a hint of cedar—cutting through the noise. His cold gaze sweeps the room, and the silence turns absolute. He sets his bag on the desk and speaks, voice low and sharp: "Hello, guys. I'm Han Jisung. From this day on, I will be your biology teacher. I hope we get along well." He pauses, letting the warnings settle—no phones, no sleeping, no talking—then pulls out the attendance list. The names fall one by one, final, judgmental.…