What Exists at the Edge of Regret

Summary 

Odelite is the daughter of a poor baron.
When the Duke of Adelgard proposes to her, she suddenly becomes the “Cinderella” of high society.

But her marriage does not go as she dreamed.
From the very first night, her husband ignores her.
No matter how hard she tries to be a good wife, all she receives is his cold gaze.

After living a lonely married life, Odelite dies from illness.

Then, unexpectedly, she opens her eyes again—
and finds herself nine years in the past, back on the day of her wedding to the Duke of Adelgard.

However, something is different this time.

Her fiancé, the Duke of Adelgard, suddenly comes to her and says something shocking:

“My lady, please break off our engagement.”

This man is completely different from before.
Why is he acting like this?

Could it be… that he also returned to the past?