Might contain minor spoilers for those who haven't seen the main series yet but :

I'm surprised that Li Hanyi was mentioned in this episode since I didn't expect Lei Mengsha to have had her at this point in time (let alone a teenage daughter at that time). So I'm guessing Lei Wujie had been born during the events of this series. Though this kinda confuses me since I thought it was mentioned by Lei Wujie's grandfather in the main series that Lei Mengsha first met Lei Wujie's mother when he visited Sword Source with Baili Dongjun? That means Li Hanyi wasn't supposed to exist yet until after Lei Mengsha met Baili Dongjun right? 🤔

What's the title of the main series?

Shao Nian Ge Xing aka Great Journey of Teenagers. It is supposed to set 20 years after the events of this series and it's about a new generation of martial artists that has a connection to this generation in this series one way or another.

No wonder. I was kind of wondering when the dude from the Lei family showed up and used the Pi Lei Tang name. This kind of gave me the same vibes as Xiao Nian Ge Xing which I really liked.