A series is, of course, a made-up story. It's just a movie. But the foil is the known reality: How do people deal with each other, how are social and economic conditions? Some things are obviously different in Asia/Korea than in the West. So many things seem strange to me, in detail:
The wage-dependent manager Jo Soo Kyung, for example, allows herself a tone toward her boss, the FL, that ranges from coercion to impertinence. In addition, she presumes to manipulate the FL's private life and personal relationships in an irresponsible manner.

She would not take responsibility if she destroyed the FL's happiness in life. She acts out of selfish motives as a matchmaker and on the other hand tries to prevent the FL's relationship that she does not like. We know that in boy/girl groups probably often bad conditions prevail, but here there is only 1 boss and 1 manager.

This raises the question: Is this common behavior? I don't really believe it, it will be due to the exaggeration of the authors.

Moreover, FL has to deal with the aggressive, threatening and possessive behavior of the ex-lover. His way of yelling at people, screaming at them, intimidating them, is it allowed? Has no one ever spontaneously kicked such a bastard in the face for unacceptable behavior?

Despite the above gripes, the series is mostly enjoyable and amusing entertainment. And Yoo In Na: how cute and attractive is that woman!
All the good stuff gives points, friends of the night!