I've seen this drama around on social media and after reading through the summary and seeing that this is a prequel to The Blood of Youth, I decided to check it out.
The first two episodes were a real banger, absolutely amazing fighting scenes and the exact atmosphere from The Blood of Youth with the light hearted humour and friendships. Lots and lots of parallels to The Blood of Youth which I loved to see (like the coffin/chest transport and everyone fighting for it and for the main character, the two main characters meeting in a tavern/Inn etc.).

Then the following episodes up until episode 10 lost the energy of the first two episodes, it was a little difficult to stay tuned. But the episodes from ep 10 onwards are redeeming this so far. There are things which I found a little and quite obnoxious, especially Lei Mengsha's laugh. Like, yes we get where Lei Wujie had his genes from but no need to pull it until grotesque in my opinion. In my opinion, the casting choice for Lei Mengsha could have been Gao Hanyu, he can embody dummy cute characters very well. The other thing I found quote obnoxious was Baili Dongjun's drinking in episodes 3 - 8ish, I know that he wants to become the liquor deity but come on, the drinking was a little too much at some points.

I highly appreciate the casting of Xia Zhi Guang as Sikong Chanfeng. Overall, Dashing Youth and Blood of Youth characters and back story are very nicely tied together, so far I think and feel that nothing is missing, nothing was omitted which I love to see. As far as prequels and sequels go, it's definitely on the very to exceptional good side and I'm enjoying it so far.

As for what you should watch first, Blood of Youth or this, I think it does not really matter but then again if you watch Blood of Youth first it will be easier to understand the relationships between the characters in Dashing Youth.