It's Not Love (Min Wonbaeg)

Synopsis

Soo-yeon wants to marry her boyfriend of six years, Kyung-heon, but everyone around her is against the idea because he is selfish and self-centered.

"Why do you want to marry me?" she asks, hoping to convince him of her heart, but he gives her a surprising answer. "My father is retiring soon, and I need to return the money I gave him."

What! That's why you want to marry me! Soo-yeon's confusion is short-lived when she becomes intensely involved with Do-kyung, the next head of the company...