I, the sinner, will never die on the guillotine

Description

I, Louis, a migrant worker, died suddenly after working too much overtime, and accidentally traveled to the Star Continent where gods were rampant and hundreds of races abounded. I became the first emperor in the history of the Unser Empire to ascend to the throne as a prince with a foreign surname.
At this time, the imperial capital was in a sea of ​​laughter, and I made an indelible contribution to this.
Because the revolutionary army is marching me to the guillotine.
As the trapezoidal sword fell, I ended my mindless life... It was supposed to be like this, but when I woke up again, I returned to the time before I was crowned a prince, and what came back with me was the diary I carried before my death, which recorded about my future.
……
I, Olivia, the second princess of the Unser Empire, was just reborn on the day when I was conferred by the Prince of the Kingdom of Chaos. I witnessed the end of the princess and the collapse of the empire with my own eyes, so I decided to give a little bit to the evil Louis Charles Julius. Look at the color.
It is the duty of the princess to restore the glory of the empire!