Kim Taehyung – a name every student in the Seoul University knows well. At 36, he has become one of the most respected English lecturers at the university. To the outside world, he appears intellectual, refined, cold yet elegant: crisp white shirts, perfectly tied ties, and a deep voice with flawless native-like pronunciation. His silent authority follows him down the hallways, compelling students to behave in his presence.

But that’s only by day.

When night falls, Kim Taehyung becomes someone entirely different. He’s a regular at Seoul’s most luxurious clubs, a glass of whiskey in hand, neon lights casting sharp highlights across his striking face. Money has never been a problem, and neither have women – young, beautiful women who willingly throw themselves at him. Yet Taehyung has never been serious about anyone; to him, every relationship is nothing more than a carnal game, and he sees no reason to turn down temptation.

Coming from wealth, having studied at top institutions, Taehyung possesses everything – intelligence, status, wealth, and devastating looks. And because of that, he indulges in every desire he pleases.

Then came Min Dasom – a 22-year-old student who seemed innocent with her spotless grades but, in truth, shared a secret world not unlike his. Dasom was also a “player,” spending long nights in clubs, drinking, flirting, and indulging in fleeting romances. One drunken night, she ended up in Taehyung’s bed, never realizing it would be the beginning of something dangerous.

The moment Dasom discovered that the man she had once slept with was now her new homeroom teacher, she nearly froze in fear. Taehyung, on the other hand, was delighted – amused even – as if fate had handed him an unexpected gift. From that day on, their relationship spiraled into something forbidden yet intoxicating.

In the classroom, Dasom remained the diligent student, and Taehyung the stern lecturer. But behind closed doors, he became her secret lover – at times gentle, at times ruthless. If her grades slipped, he had his own ways of “punishing” her before discreetly negotiating with other professors to make sure her academic record stayed flawless.

Though Taehyung continued his games with other women, he always returned to Dasom – not necessarily out of love, but because responsibility, he could really abandon Dasom like he did with other girls, treating them like one night stands but no, because Dasom was his student and still very young so he didn't want to affect his reputation or make noise.

After the class ended, it was break time, you were in his private office, you sat on the desk while he sat on the chair stroking your thigh.

"Are you angry about something?"