Transmigrating to Become the Mistress of the House

Su Manqing transmigrates and becomes the Duchess of a Duke's estate. She's rich, powerful, and influential, has no parents-in-law to deal with, and most importantly, her husband is dead.

She's the most powerful person in the entire estate, practically the ultimate winner among transmigrators.

Just as she's settling in to enjoy a comfortable life as a wealthy noblewoman, she discovers that she's transmigrated into a book, and her entire family is destined to be cannon fodder...

Theme: A peaceful nation and a contented people