You Promised to Divorce Me

She entered the world of a romance fantasy novel in which the original heroine entered the villainess body.
The only problem was…
She was betrayed by the story’s claimed main character, in other words, the heroine’s younger sister.
But she won’t give up like this.
She will survive without meddling with the story.
She successfully escaped her terrible family’s clutches and gets married to the strongest extra character! Since she got married, she acted her part and lived to the fullest.
Because it’s nearing the end of the contract, it’s time for a divorce.
“Am I unsatisfactory?”
“W-what do you mean?”
Her face heated up at the sudden attack.
“How can my wife abandon me so heartlessly?”
No, you definitely promised to divorce me!