Long story short - FL travels 10 years ago and met ML, that's when she realise she needs to help ML become the CEO of his family business in order to go back to her current world. It is a decent romance-comedy with time travel elements in it.

Here are my thoughts on the good and bad for you to judge:

THE GOOD

(1) FL and ML banter and all are pretty interesting and funny to watch
(2) Love ML's character, he is narcissistic yet very soft at heart
(3) Li Hong Yi is very hot
(4) 2nd FL Zhao Yan turns out to be one of my favourite in the show
(5) Doesn't drag too much and is pretty straightforward

THE BAD

(1) A lot of plot holes especially on the time travel part. No elaboration on how she travel back and how FL meets her young self and she is not shocked or anything... and also a lot more
(2) Sloppy and abrupt ending. It's just bad.
(3) Weak chemistry between the leads (FL does look a lot older than ML but acting wise is considered ok)
(4) The business plot is bland and boring

Overall, I would say this is worth to watch if (1) you have extra time and want to watch a ok show without effort (2) you want to look at Li Hong Yi. Otherwise it's pretty meh & I wouldn't rewatch it again.