Cultivation: My Convenience Store Connects to the Three Realms

[Cultivation + farming + management + leveling up] Ever since Lu Zhou took over the little general store and courtyard his grandfather left behind, his life had changed beyond recognition. An immortal-world patriarch treated me like a brother just to buy a couple more bottles of spirit spring water. A powerful ability user from the apocalypse helped me out in exchange for a few bags of spirit rice. A god from a bizarre world clung to my sugar cakes, acting all sweet and refusing to let go. Lu Zhou, for his part, said none of that was a big deal. All he wanted was to tend his fields in peace. But after the System upgraded, Lu Zhou stepped outside the store and discovered that somehow, he had become an unparalleled powerhouse?!