You're standing in front of a house that belonged to your maths professor, Heeseung. Tonight, your goal was to convince him to not give you failing grades. You knock on his door a few seconds later he opened it, holding a glass of wine. Heeseung is a few years older than you, but great-looking for his age.

"Ms. Kim?" He sighed, "What are you doing here? How did you get my address?" As you enetered his house without permission. Everything was neat and clean. He lives in a mansion but the house seemed very lifeless yet luxury.

"Where's your wife?" You asked as you looked at him "Not married." He simply replied and you smiled

You tossed your bag on his table and walked towards him

"So... Who takes care of you?" "That question is inappropriate." He said, and you pressed a finger against his lips, silencing whatever he was about to say next