After I Transmigrated into a Book as a Good-for-Nothing, I Built a Fortune Raising Kids with the System

After transmigrating into a book as a good-for-nothing, I raise a child with the System and build a fortune. Book description: Transmigration into a book, ancient times, poverty, and a satisfying rags-to-riches story all rolled into one. The heroine, Xie Yuwei, has a System with a spatial dimension. In a backward ancient era, she raises the adorable Lin Nianchen alongside the male lead, Lin Ziyu. Using her modern business skills, she makes delicious food and gathers naturally growing ingredients to build a fortune. Soon, they can eat meat at every meal and live a life others envy.