A vertically filmed micro drama (I rate these on their own sliding scale). General spoilers further down. I thoroughly enjoyed this, but it won't appeal to all. I'll definitely watch again.
The writing, acting, and directing presents everything in a slightly humorous way, which lightens things up and makes the interactions and reactions fun. Both lead actors are fantastic. The ML is extremely domineering and occasionally manhandles the FL but is not violent (no slapping, choking, sadism, etc). He does raise his voice and can have an imposing or threatening demeanor, and the FL is afraid of him in a flustered way. To me, both actors did it in a way that wasn't heavy and both had great comedic timing that played into the fantasy of it without making it feel uncomfortably real. There are some sweet moments between them too.

The FL is super clumsy and shy but earnest, cute, and a good worker, and the ML is sometimes exasperated/miffed yet drawn and attracted to her. He does ask her questions and gives her a chance to explain things in different situations before judging her, which is rare! He grows suspicious over time that she is keeping something from him but continues to give her the benefit of the doubt. He steps in to help and/or save her a couple of times.

This story does multiple things slightly differently than expected (in the micro drama genre).
One of them is that the ML continuously chooses to gives the FL the benefit of the doubt (as mentioned above).
Another is that no 3rd wheel wanna-be pretends to be the woman the ML slept with when drugged.
Another is how the FL acts when drugged; not only does she become aggressive with intimacy, she also gets more dominant with a hazy predator look in her eye (their starting scene is the first time I can remember seeing a FL grab a ML's throat in that way). The two leads have great chemistry and seem comfortable with each other (underneath how they act as their characters). There are multiple moments of sexual and/or romantic tension and a couple great, realistic kisses with small to big movements.

General Spoilers below:

Expansion of synopsis that sets up the story:
The FL works as one of the ML's assistants and the two of them end up drugged and sleeping together one night. The FL wakes up first and sneaks away. She knows the ML hates women who try to seduce him, so she is comedically afraid that he will think this of her and run her out of town if he finds out. The next day the ML tasks the FL and his main male assistant to find the schemer who stayed with him in the hotel. He suspects that it was manipulated by his stepmother. The FL's best friend, who also works at the company, helps her cover up the evidence (surveillance and hotel workers). Over the course of the story the best friend continues to advise the FL to cover up the truth, afraid of retribution. Thus the lies get bigger and the FL gets more and more flustered, especially as she starts to like the ML.

There is also:
Family debt that the FL is trying to pay off, a contract relationship that slowly turns into more, an unexpected pregnancy (that the FL wants to keep), later in the story there's a 3rd wheel for a bit (the ML's girlfriend from the past who comes back to the country), drugging of the FL and attempted rape, and a kidnapping. Still, for a vertical drama, things don't feel overly crazy. The focus remains on the interactions between the leads.

The ending is sweet, ends with a kiss, and is satisfying enough; it's not long, but it didn't feel rushed either.

I added links to where I found this in the review comments.