Yes, many parts didn't make sense and flow was interrupted. You could tell the difference between the last 8 episodes…
It’s very logical. The brother(twin) didn’t get in the HUA city he was waiting outside. He came along with the family. Hence he must have rushed back to the family for help.
Um…where the heck did her entire family come from? Including YY and her new husband? And they’re all bowing…
Remember when his twin brother was waiting out of the city. I am sure he realized there was a problem, hence he rushed back to the city to inform their family. It’s not unleasric it’s logical.