I Return to the 1960S with a Pocket Dimension and Become Filthy Rich

After transmigrating into a famine, Qin Dong discovers that he has a mysterious pocket dimension. While everyone else goes hungry most of the time, he has acres of wheat, far more than he could ever eat. Even more incredibly, he accidentally discovers that he can change the flow of time inside the dimension. From then on, his life only gets better. The wheat he grows can be harvested several times a year. And the roosters he raises are all fat with oil...