This drama is the most unrealistic drama of all time. They spent a ton of money just to make it look aesthetically pleasing. Every Korean romcom has a story but this drama doesn't even have a plot.
First of all, the male lead just randomly falls for the girl. He had no reason to fall for her.
Secondly, his only character is doing romantic things for the girl. He doesn't do anything else in his life. He only keeps gifting the girl lavish things and waits for her to finish work so they can eat together. In other dramas like business proposal and what's wrong with secretary Kim the men had a life outside romance and worked hard to build up their empire. But over here, the male lead doesn't care about the hotel that has handed over to him or about anything else.
It gets annoying after a point.
He's like the typical rich boy with good fortune with no ambition or personally whatsoever.

This is definitely very overrated and not worth the hype.