Transmigrated as the Cannon-Fodder Wife of the Big Villain

Complete! Pei Chuning transmigrated into a book, becoming a cousin with the same name as herself in the Zheng Duke's mansion, and the wife of the current Crown Prince's eldest son. What a wonderful status, except the former Crown Prince had died young, a new Crown Prince had already been appointed, and the Zheng Duke's mansion was part of the new Crown Prince's political faction. The original owner, a cousin in the household, was simply a sacrificial pawn pushed forward. After the late emperor died, the new Crown Prince ascended the throne. The loyal officials from the former Crown Prince's faction were all eliminated, while the former Crown Prince's eldest son, Xiao Heng, the story's great villain, was sent away early to his fief in Qingzhou in the northwest, the most desolate place in Great Chu. The original owner, another sacrificial pawn, even "died of illness" on the way to the fief. When Pei Chuning arrived, the male lead in the book had just been ordered to wipe out the former Crown Prince's descendants. According to the original story, the original owner died in the chaos, while the great villain narrowly escaped and took a group of loyal servants to his fief, where he would recuperate and bide his time. In the book, Xiao Heng spent less than three years recovering in his fief before launching a rebellion. Leading old retainers and new recruits, he fought all the way to the capital. But a villain is still a villain: after killing the emperor, he was captured by troops led by the male lead, the eldest prince, and finally died with ten thousand arrows piercing his heart. After recalling the plot, Pei Chuning opened her eyes and saw the great villain lying in front of her, covered in blood. Pei Chuning: ... Never mind. Saving him comes first. A little scene: After arriving in the northwest, Pei Chuning discovered that the place was unbelievably desolate. There was little fertile farmland, but plenty of barren hills and wasteland. Winters were bitterly cold, and the people lived in poverty. So Pei Chuning waved her hand and set about reclaiming wasteland and planting crops. Hot and sour noodles, potato noodles, spicy hot pot, one after another. Too cold in winter? They could build heated kang beds. Too hot in summer? They could make ice with saltpeter. Later, Qingzhou became the wealthiest city in the northwest, and even in all of Great Chu. One day, after enjoying a bowl of sweet shaved ice, the great villain summoned his deputy general and said, "Everything is ready. We will raise our army shortly." Both leads have never been with anyone before, one-on-one romance. Content warnings: The writing is amateurish. The main focus is farming and food, with a little unserious political intrigue and power struggle (very little). The heroine will build her own career in the past, and the original heroine will not be villainized. Blurb backed up on January 22, 2022! Theme: Face difficulties without backing down, and strive to live as your true self.