https://www.webnovel.com/book/jun-jiuling_7624928106001005 

You can read it here, but they only translate it up until chapter 222, but then you can read the direct translation here (annoying ads alert) 

https://1stkissnovel.love/novel/jun-jiuling/  

Does it have a happy ending?

 AlexisTasartir:

If you read the novel, can you tell me, what/if Lu Yun Qi had to do with late Emperor's death?

I didn't really read the details. I just rushed thru it. But thankfully it was explained somewhere around chapter 78X plus. Think he was the imperial guard outside the father's chamber when Zhu Rang went in to see the father & killed him. 

The link to the translated novel is up there if you want to find out more.

Here are a few edited MTL chapters starting at chapter 223: https://dramasonmymind.wordpress.com/2021/10/10/jun-jiuling-chapter-223/

Worth beginning with these before jumping to the straight-MTL chapters imo

Here can you see the updates.