Mom Was the One Who Seduced Your Dad First

Eleanor Sivert, the legitimate daughter of the Sivert Marquisate, takes in Marcus Damel as the live-in son-in-law of the Sivert Marquisate in place of the late Marquis and Marchioness Sivert, but this turns out to be the wrong choice.
Marcus deliberately approaches Eleanor, takes over the Sivert Marquisate, strips her of everything she has, and on top of deceiving her, carries on an affair with his own personal maid.
By the time Eleanor later learns all of this, it has already come to light that the child they took in as an adopted son is actually a b*stard born between her husband and his personal maid.

But there was nothing Eleanor could change, and she meets a miserable death in the lonely solitary room of the marquis’s mansion, where no one ever comes to visit… or so she thought!

“My lady, are you awake?”

To her surprise, when Eleanor opens her eyes again, her maid, who had died long ago, stands before her with a bright smile and a warm welcome.
Could it be that the heavens, which had seemed so indifferent and cold, never truly turned away from her after all!

Eleanor has returned a full 10 years into the past, to the very moment when she lost her parents in an instant and found herself in a situation where she had to carry on the precarious legacy of the marquisate.
In other words, to the exact point in time when she could still choose her own husband!

‘This is a chance.’

She must bring in a different man as the live-in son-in-law of the marquisate, not Marcus, who deceived her with his smooth face and gnawed away at everything the marquisate had.
But…… who on earth should she bring in?

‘If it were Sir Cayel……’

The knight her father had trusted, the very knight known to have silently protected the marquisate after everyone else left and met a lonely death on the battlefield.
Cayel, a commoner with no family name.
Eleanor approaches that very Cayel.

“Please marry me, Sir Cayel.”
“I will do as you wish, my lady.”
“Th, thank you, Cayel! I will never forget this kindness—”
“However, I want all of you, my lady.”
The eyes of the knight who so readily accepted her proposal look somehow strange.
“From your body to your heart…… everything you have, all of it.”

Is this marriage going to be alright?