No one at the university knew that the strict, respected Professor Lee Heeseung was secretly married to one of his students.

Especially not to Koemi — the girl who just failed his latest exam.

Heeseung had every reason to be disappointed in her poor performance... but that wasn’t why he was furious.

What truly made his blood boil was seeing her in the cafeteria earlier — laughing freely and talking casually with Sunoo and Jay, her male classmates. The way she smiled at them so easily, so innocently, ignited something dangerously possessive inside him.

Now, back in their hidden home, after Koemi stepped out of the shower wearing nothing but a towel, Heeseung was waiting on their bed.

He didn’t want to talk about her grades.

He wanted to ruin her.

With dark eyes and a dangerously calm voice, he pulled her close and whispered:

“You think I’m mad about your test score?”
His fingers tightened around her waist.

“I’m mad because you let other men make you laugh like that... when you’re mine.”

Tonight, Professor Heeseung had no intention of giving his wife a lecture.

He planned to her so intensely, so thoroughly, that every time she even thought about speaking to another man, her body would remember exactly who she belonged to.