“Your Majesty--do you aspire to be a conqueror?”
Marianne asked him one day, and Charles, laughed happily, which was unusual.
"Hmm...Is that what you see, Marianne?"
"Yes. At least in my eyes."
"Conqueror, huh? If that's what you want, that's not bad either," Charles muttered, an even more amused smile appearing on his handsome face.
When Marianne heard this, her expression turned grim.
“If you are serious about such things, I will refuse to touch His Majesty from now on. Please do not enter my sleeping quarters again. I will immediately decapitate myself.
"I thought you'd say that. But, Marianne, there's one thing you forgot to mention. In that case, you would only kill yourself after beheading this emperor, right? ”
[......]
"Is it untrue………?"
"Mhm."
"You are a person who never compromises on yourself. Just like me. Therefore, your wings are something that even this emperor cannot control, and the way you flap your wings nobly captures his heart." Marianne couldn't help but smile crookedly as the truth was whispered to her from an unexpected source. Seeing this, Charles also laughed.
"Marianne. My desire is not to conquer the world. It is to strip away the lies of the world. In the process, I hope for the world. I will rid the world of lies. That is my oath. ...But let me promise you this, Marianne. The inside of your heart that you never show to others. That emptiness that cannot be wiped away. Even that, I will make up for it.”
Marianne's expression returned to normal and she fell silent.
Then she said, "If His Majesty truly thinks so, I will create a 'vessel' for His Majesty. His oath, the power to approach it. The path - an army strong enough to conquer the world."
The emperor laughed loudly this time.
"That means you're joining forces with the worst sinner in history, Marianne. Your children and grandchildren will continue to be accused of being witches who assisted the most evil king in the world."
Marianne smiled too.
"Of course, I am prepared. Your Majesty does remember what I am called, right?"
"The Flash.  It sounds good, but a flashing light burns people's eyes out. Moreover, your light is by no means the halo of a saint..."
"A bloody hero's death. I have never wielded a sword for anyone other than myself.
"Even when you protected me... that's why I wanted you. Would you like to see the world together, Marianne?''
“Even if it costs me my life.”
Since then she knew.
This person was planning to spread his wings even bigger someday.
Britannia, a continental country. However, this person cannot fit into such a small container. He has to involve many countries and puts the world under its control.  Even if he was called a tyrant, or the king of Hades with the sickle of death. Moreover, his motivation was never ambition. Nor was it vigor. Instead it was because of the tears of blood that this person shed when he was young. To fulfill the vow he made.
In that case, what she can do after deciding to walk with this person is--