C1178 1178 the World Is Finally Saved
The people of the Southern Wilderness were poison ancestors. They knew that the best way to deal with poisonous bugs and poisonous grasses was to use fire. However, they had interacted with Ji Xin for many years, so they were more aware of her abilities.
Ji Xin had the ability to control the poisonous bugs. Perhaps before they threw out their torches, she had already retracted them