A lot of factors are hard to understand and are left unexplained unless you read the novel version which I didn't.

1. How did Feng Wu end up in that timeline/parallel? What was she before?
2. Where did she really came from?
3. She learned from a medical doctor in that era, that doctor even has high regards on her abilities, she also sells medicine for the last couple of years (the people from the border knows about her and her medicine) but they didn't delve too much into it that whenever she pops up with medical abilities from some future episodes, it's kinda hard to accept. LOL!
4. Master and his cognitive/spirit? teaches original Feng Wu but this original was still defeated despite having phoenix blood and all those learning's
5. Master saved the world, loss most of his powers, slept so long and even recovered that spiritual something. In most cases he should have at least gained more powers but no! He becomes a weakling despite those power ups!
6. All the elders in this series are fucked up, especially the emperor, idiot doesn't care about the court thus when wife raised a coup his people doesn't mind that much aside from some side characters
7. Crown prince, no comment. LOL!
8. The set on some episodes kinda reminds me of The Untamed and Concubine Born Minglan
9. Somewhere half way thru the series, forgot which episode, an instrumental music was played as background that sounds the same as Wangxian from The Untamed (different instrument was used but the score is the same)
10. All female characters are great!

I feel sad for Zuo Qing Luan, jealousy can really cloud anyones mind.

Second couple Yin Zhao Ge and Xuan Yi, sacrifice seems petty after getting their lives back. Applause to the actors and actress who played this roles, very fitting

Justice for Yu Ming Ye! A girlfriend for Feng Xun!