ok so the last time they are teenagers is chapter 227 and then there's a timeskip in 229 of 4 years later which is where the plot starts to pick up since Xiao Hei (wowo's friend) is found again after having gone missing in 227
since you're skipping around id say start around 250 and read bc this is when wowo's and Xiao Hei's relationship and the plot starts progress more.
Or you can start at 260 when the parents find out
or start at 269 to skip to the leading cause of events of 280s
but if you want to see them start being a couple/find out why Xiao hei refuses to let wowo know why he's back then skip to 289/290
the western guy comes in at 323
348 is when the main antagonists are shown
there is a lot of extra chapters (straight man, qu cheng and xu cinian being dad's, Xiao yuan's kindergarten life) in between the main plot so feel free to skip those. they're usually a chapter long (Xiao yuan's may be a bit longer at some points)
btw sorry this is so long !!!
I think I got bored mid season when the 2nd baby was born the story got oo long should I continue ?