Ye Qingyun transmigrates into a fantasy cultivation world and is trapped on Floating Cloud Mountain by a system for ten years. Through ordinary daily tasks such as growing vegetables and painting, he secretly reaches level 9,999 and becomes an all-powerful Saint, without realizing his true strength. After an accident shatters the mountain's restriction, the system disconnects and runs away, finally allowing Ye Qingyun to descend the mountain. A princess who accidentally stumbles upon him, the Song family pursuing him, and a junior sister of the Martial Emperor seeking medical help all mistake his casual palm strikes, cupping treatments, and prayers for blessings for the work of a hidden supreme master. As the Demon Sect wreaks havoc, Ye Qingyun is forced to take action, bringing out a Barrett rifle, grenades, and insecticide one after another. Nine divine dragons guard his mountain, while the manifestation of a Great Emperor shakes the world. His name as the Saint Who Protects the Nation resounds across the continent. Yet all he wants is to keep growing vegetables, walking his dog, and enjoying a carefree life in the mountains.