I think u might be looking for the special chapters right after s1
troughout the story we see yoon gu and heesung interacting 2 times in chapter 31, one longish interaction in chapter 35, the 2 special episodes of them which are posted after season 2 finale, chapter 58, and last just a little bit in chapter 88. I dont think we get to see them together anymore after that. (theres a change we might also get side storys of Their love story, if mingwa does decide to make them a couple but nothing is comfirmed)
THANK YOU ALL SO MUCH YOU
would anyone be able to say what chapters were about the second couple, the celebrity and the black haired bottom? I really don't want to go through it all and tried to go through "photos about this manga" but there are 4000+ list if anyone knows it would be very appreciated