This isn't a BL story. Well it is and it isn't at the same time. It belongs to a particular genre (which I personally love), in which a few people (usually couples or families) spend some time together in a rather secluded place and all the skeletons in the closet each and everyone hides come out. Usually after that the lives of all participants are irrevocably affected. As is typical for those stories the acting is rather theatrical and the emotional changes which the characters undergo after each revelation or after facing known but untold truths lead to breakdowns, reevaluation of their lives and coming to terms (to the extent possible) with their respective pasts.
Here we have a successful mother (acclaimed soap opera director), her son turning 20 and the best friend of the father, who passed away in a tragic accident. No romance, no kitties, no flowers or rainbows, just brutal truths that hurt and thus everyone tries to avoid. But not everyone can. The ending is not happy (at least not in the usual sense), but rather demonstrates that life goes on, no matter what.
The performance of the mother is excellent, of the father's friend quite good. That of the son is simply stellar! The quarrels at the end (after the elephant is released) are breathtaking and captivating. And they do not revolve around love as much as around life and how it's supposed to be lived. Love is just the ignition of everything .
Interesting detail: none of the actors are actually BL actors.
This is a gem that you should definitely watch. However, do not expect a romantic comedy. It's neither romantic nor funny, but brutally blunt. Thus, make sure you watch it while in a good mood and able to handle distress.