Responses
I also got confused with all the other added character but the way I understood it is that Min Joon has 1 cousin, the guy who had the tarpaulin when he welcomed them at the airport. That cousin has a boyfriend who’s a doctor and that doctor has a Brother (with a son named Dong(Toma’s friend) and a partner).
The author introduced wayyyy too many people at once in season 2, I have no idea who half of these people are. It's hella confusing. Does Min Joon have 2 cousins? One with a son and another one, and they're both gay with boyfriends? That's how I see it