I Became the Deposed Crown Prince's Son-in-Law [Infrastructure]

After transmigrating as a live-in son-in-law, Xie Yu is quite pleased to learn that his husband is the deposed crown prince, now Prince Li. Having worked year-round as a surgeon in his previous life, he promptly decides to lie flat and live off his husband. The deposed crown prince is paralyzed in both legs and has a volatile personality, but that's fine. Xie Yu can treat his legs, and he's especially good at dealing with patients whose personalities change because of their illnesses. But as time goes by, Xie Yu suddenly realizes that this is no life to live off someone else's money. He's in a book, and the original host is a scummy cannon-fodder who lives off the deposed crown prince while pining for a cousin from a distant branch of the family. After failing to elope with her, the original host gets fed to the dogs when the deposed crown prince returns. Literally fed to the dogs. At the sight of the dozen or so wolfhounds in the backyard, Xie Yu gets goosebumps. To make matters worse, he transmigrated right at the point when the original host had been caught after failing to elope with his cousin. Xie Yu: QAQ Everyone in the capital says that Xie, the Vice Minister, values his future more than his son. To get promoted, he actually sent his son to become Shen Jin, the deposed crown prince's live-in son-in-law. Everyone knows that ever since the deposed crown prince was ambushed on the battlefield and paralyzed from the waist down, he's become volatile and murderous. No one in the capital dares provoke him. The onlookers all wait for the day Xie Yu's body is tossed into a mass grave, wrapped in a straw mat. But while they're waiting, the deposed crown prince defeats his brothers and ascends the throne, and Xie Yu becomes the richest man in Daxia. The two are still as loving as ever. Easygoing, lie-flat top X scheming, sinister bottom P.S. The blurb has been slightly revised. The original version said Regent. Theme: Hard work brings wealth.