Nothing really happens in this drama, just the good-looking ML and FL walking to and fro while doing some annoying product placement - it's not even available in my area for God's sake! To summarize, it's just a looooooooooooooong commercial with a VERY - and i mean VERY - thin plot.
About the office romance, i happen to watch something similar, Love Is Sweet, and im getting confused with these two, since they r both as unremarkable.
If you have a lot of time, you can check this while looking for something that matters.