There's a korean game included in this fic--Frying pan game (I think a lot of idol groups have played it, too). You can search it on YouTube if you want to know more about it. Or just read the fic, without understanding what the game meant. It's not really that important anyway.

But hey, hope you all would enjoy this, especially @sixyilingjoons, and have a Merry Christmas everyone! Also a happy and abundant new year!