Remember Before You | SUNSUN

One, Park Sunghoon hates Kim Sunoo. That's definite and final. His life has been a series of downfalls and embarrassments ever since he started working in their company, Regal Heights Co.
Two, that's the thing. He's a graduate from Seoul National University, but now he finds himself relegated to a mundane 9-5 job.
Three, Park Sunghoon became unsure. The more time he spent around Sunoo, the more he started to doubt his feelings. It was as if everything was falling into place-or spiraling out of control.

Or, shit starts to go down for Park Sunghoon, upon learning that his cause of misery is about to get married to the eldest son of the Choi family, who own Blue Moons Elites, the country's second wealthiest company. Even more when he realized, that the almighty Kim Sunoo, is still hung up on his ex-lover.