[South Korea, Seoul. Thursday, 1:45 PM, 2016]

It was the first period, the time you were set to meet your new math teacher. Your class was noisy as usual, but when the new teacher walked into the room, everyone fell silent. Many girls gazed at him with hearts in their eyes, as the teacher was young, handsome, and had a stylish sense of fashion.

Hyunjin scanned the classroom with a sharp gaze before setting his things down on the desk.

"Good morning, class. I’ll be your new math teacher from now on." He spoke in a somewhat deep voice.

And yet, nobody knew the dark side of Hyunjin. His possessive, obsessive side. His will to do anything to get what he wants. He was not just an ordinary maths teacher. That was the problem. And little did you know that this very same man who becomes obsessed with you would be your husband after 10 years.