The Capitalist Heiress Goes to the Countryside as a Substitute Bride and Gets Spoiled Rotten

Jiang Mian transmigrates into a period novel written by her cousin, becoming the concubine-born younger sister of the rich young lady heroine who goes to Hong Kong to make her fortune. What? She has to take her sister's place in an arranged marriage and go to the countryside as soon as she transmigrates? And her match is a disabled soldier who can't have children? Luckily, her cousin wrote her as a stunning beauty, and she even snatches back the spatial dimension meant for the heroine. In the early years of the People's Republic, the whole family plans to flee to Hong Kong. Only she, the daughter without a mother, and her gloomy younger brother are being sent to the countryside. There's no way she can put up with that! The rich young lady schemed to marry her off to a disabled man? She'll strip the house bare so the woman can't make it to Hong Kong. Her deadbeat father doesn't care if she and her brother live or die? She'll strip the house bare and send him off to farm in the countryside. As for the second and third wives and the two concubines, she can't do anything about them, and they're no pushovers either. She takes all the family wealth and heads to the countryside with her brother. But her disabled husband seems... different somehow. He was supposed to be an abusive man, so why has he turned into a cool, handsome one? He was supposed to be disabled and childless, so why has he stood up and pinned her against the wall? “Mianmian, one more time...” When the man pulls out a sanitary pad, she decisively clings to her golden ticket and enjoys a wonderful life in the countryside with her brother, while watching the heroine's family fall into misery. Her cousin transmigrated, but wait, why is the male supporting character on his feet? Why hasn't the ill-fated female supporting character been shoved into a pig cage and drowned?