I do think it's odd that we are getting all this progress with the second couple but the first has gotten nothing recently. There could be something big planned for them? I hope so because they're just as cute.
Nah I like seeing them being silly like this bc when it's their turn to get a development it's gonna hurt like hell (for explanation the first chapters mentioned Jian Yi got kidnapped during his first year in highschool (pretty soon because they're near graduation rn) so he'll be separated from Xixi for a while) so yeah they re gonna have their part bc we haven't even reached half of the plot
Yeonjoo and the baby being two little cuties!
I hope the letter is something good like his daughter having her own family and wanting to meet the old man.