This drama is based on a very complicated long journey of a person with a clear conscience! It is involved with many on front moral-test of that person. That person, i.e., prince Xu Feng Nian (XFN) spend his whole life for only one basic moto: "survival" since he was not even born! Throughout his life journey he had to face uncountable sworn-enemies while maintaining a very high moral values for himself. Very powerful personality. A very good story to enjoy. So story is 10/10
I loved the spontaneous acting of every casts; its so natural that it was looking as if they are some real-life character and they are not at all acting but just living their life as we do. I am highly impressed with the acting of Qiu Xin Zhi, Yang Hao Yu,Tao Hai, Hu Jun. So mature acting skill! Obviously they are aged skilled actors, but I never found such a grip on spontaneous expression of any actors in other dramas. Its not a first drama in which so many veteran actors are present, but I wonder, how their acting
are so much strikingly different compare to other dramas!! The most weak acting I have felt here is : Jiang Ni. She did good in some scenes but was mostly a "dull" representative compare to other surrounding actor or actress of her age. Still I have enjoyed the acting so much that it deserves 10/10
Now, I would like to highlight the boring pace of this long complicated story. Countless time I was so bored of this drama flow that I was on verge of dropping it on that instance! Some cases, it was just unbearable. Still, there were some suspense to hold myself back here. I wonder if its the problem of "director" that he made it so boring time to time. The last ~ 10 episodes and first ~ 6 episodes were just awesome and very satisfying to me. In middle, it was very slow! So, I didnt much enjoy it as overall presentation.
Some cool fighting and bickering scenes of Qiu Xin Zhi were very entertaining, love them. He was perfect for the "sword god immortal". Beside him "Zhang Ruo Yun" was looking really a "kid" but I like his effort to blend himself as XFN in this drama. He did very good job as well.

The short analysis presented by a person at the end of each episode ( I am not sure but I think he is the director himself) was without any subtitle, so I could not able to understand anything of it. Thats the regret part of this drama.
Basically, this drama is based on a true survival as well as revenge story, very very carefully conducted so that other side-characters or innocents do not get involved. Very smartly XFN avoided himself from being tainted of "blood of innocents". In such "power struggle", it is indeed very hard to "not getting involved". There is very very rare story plot of drama is available in which the main character stays almost completely clean of "blood of innocents". Most revenge plot just drags many side innocent characters in the bloody revenge and lead them to "unfair death". And we just keep our eye closed to their "unfair" ending while just blindly supporting the main leading character. Thus, this drama is unique on its own.

This drama just reminds me of a phrase " knowledge: tomato is a fruit; wisdom: not keeping tomato in a fruit basket". There many such essence of wisdom are present in the story and I absolutely loved them. Just one notable example of such is when the fight between "sword god vs Wang Xian Zhi" was stopped with mutual unspoken agreement of both for greater good! Also Peach Blossom god came there to protect human-kind! Very deep and powerful plot, indeed.

But, I dont think I will re-watch it again for its super slow pace!!!!