Lin Yuan, a social worker who worked overtime to do some popular science in the late Tang Dynasty, was thrown into the troubled times of the Tang Dynasty during the three years of Zhonghe by an ancient Kaiyuan coin.
Huangchao was in chaos, Zhu Wen had a glimpse of the Tang Dynasty, the Xian army cannibalized people, defeated the soldiers and slaughtered the villages, Guanyin's belly was filled with soil, and refugees were everywhere.
In a desperate situation, he awakens the "Light Path of Mind" and silently prays for it in his heart, and a golden road will emerge - looking for mountain springs, looking for wild food, finding the mute orphan A'ou under the withered locust trees, and finding the abandoned Shigu Village hidden in the mountains.
A strange inscription of twenty years and three years is carved deep in the secret passage, and the road ahead hides the mystery of time and space; the rout of troops looted, and the Xian army searched the mountains and pressed forward step by step, leaving the refugees along the road to die.
Lin Yuan gave up the thought of being alone and relied on light to find a way out, plowed through wasteland, established village regulations, took in peasant women who had lost their children, old farmers who kept crops, and orphans from charcoal kilns, and built the only shelter in the mountains of the late Tang Dynasty where bones were everywhere.
While others were fighting for power and territory in troubled times, he only guarded a village with fireworks. There were only twelve words in the history books about the defeat of the army and the chaos. He witnessed the hell on earth with his own eyes. With his meager strength, he gave a ray of light to survive for the displaced people.
