Summary

“Elaine, the Vice-Captain, was dishonorably discharged!”

Elaine Pascal, Vice-Captain of the 3rd Holy Knights Order, disobeyed the imperial command to offer the captured enemy princesses as brides to the "Monster Duke"—and instead, released them.

Furious, the Emperor demanded that the daughter of Marquis Pascal be offered in their place. Now, Elaine's sister, the rose of high society, Reina Pascal, is on the verge of being sacrificed to the Monster Duke.

But then—

“Why sell off my sister?”
“What?!”
“What’s the point of hiding the youngest daughter all this time?”

To everyone’s shock, the one who steps forward to become the Duke’s bride is none other than Elaine Pascal herself—having just cast off her disguise as a man.

“What kind of sister would just stand by knowing her older sister was going to die?”

I, Elaine Pascal, regained memories of my past life—and I had my own plans.

“My husband’s not even going to be home anyway—he’ll be too busy hunting monsters.”

The Monster Duke had no interest in the wife the Emperor forced upon him.
In the original story, that indifference was the beginning of the tragedy—but for me, it didn’t seem like much of a problem.

“So I’ll just live off the Duke’s wealth and laze around, right?”

Watch my whole family die for the male lead’s character development and see our noble house fall into ruin vs.
Marry the Monster Duke in my sister’s place and live an easy life?

Obviously, the second option is the winner.

But then—

“And where do you think you’re going, my bride?”

Why is the husband—who said he hated both the Emperor and the woman forced on him—acting like this?

“Who were you just talking to?”
“The local blacksmith?”
“As the Duke’s wife, do you think it’s appropriate to look at another man like that?”
“...What?”

And what’s with this handsome guy who’s not even my husband but a monster hunter living in the ducal estate?