Transmigrating to the Great Tang, I Pick Up a Wife from the Start

I, Li Yun Jie, got dumped, got hit by a car, and transmigrated to the Tang Dynasty, where I unexpectedly acquired a System. I even had a beautiful wife, and I was a young marquis. The marquis's estate had been run into the ground by its previous owner, and my wife was using her dowry to help cover household expenses. How could a man live off a woman's money? So I set out to make a fortune. Everything was going according to plan, until things started changing after my wife returned from Yan Hua Temple. First, after the System issued the ingredients for scented water, it went into hibernation. Then I discovered that my wife was an expert fighter. The Princess of Chai turned out to be a transmigrator too! My wife's best friend was secretly the mastermind behind the Black-Hearted Gang. And I even ended up with a stepson. It all points to that box. Legend has it that whoever obtains it may be able to open the “Sealed Land,” where countless great demons have been imprisoned!