[In ancient times, farming, cities and ancient times, hoarding, infrastructure, famine years...]
Wu Qing's family's incense burner is magical and can actually communicate with ancient times. Not only can modern things be doubled and imported into ancient times, but ancient things can also be imported into modern times... But it has communicated with an era of famine when droughts spread for thousands of miles, hunger was everywhere, and refugees were everywhere.
In desperation, a pretty girl burned incense to pray to the gods, and contributed incense to connect with Wu Qing. Wu Qing harvested the incense and built a golden body, making her invincible in the city. She hoarded a lot of materials to pamper the ancient girl, and gradually trained her to become an overlord.