Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 17 - Chapter 17-13. Changing World 2

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~

A Speedster in a Fantasy World

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

I reincarnated as the wife of the cursed archduke in my own twisted novel.

As the author, I have a responsibility to fix this novel.

I have lifted the curse, which is the main problem of this story.

I thought my job was done. But when I was trying to go back, the archduke asked me, “Did you really think I wouldn’t know that you’re planning on returning to your fiance?”

‘My fiance?’

What I’m gonna do? He completely misunderstood the situation!

All I want is for him to please let me go home!