Yuanlai Wo Zao Jiu Wudi Le

Five years after transmigrating into a fantasy world, Ye Changqing thought he could be like other isekai main characters and be blessed with powerful abilities, but it turned out he had no talent for cultivation at all. He made a living by opening a convenience store in the little village near the cultivator's sect. But one day, his store suddenly became a site revered by all the powerful cultivators. Even his watchdog turned out to be a fearsome demon lord. Ever since then, people treated him like a powerful master, a legendary figure in this world… (Source: Tencent, translated)