[Sweet pet + double cleansing + counterattack + male and female protagonists with the cutest body shapes + loyal dog-type male protagonist + scumbag abuse + farming + childbirth]
It was only on the day of her wedding that Suzuya discovered that she was the eldest lady in the novel whose family was wiped out at the beginning, abandoned by her fiancé, and whose luck was robbed by the heroine. She never thought that the giant beast she awakened and let go was the main villain in the book.
The good news is, she was rescued.
The bad news is, she's reduced to a place where there are only beasts.