Chen Chen, a mortal winemaker, accidentally brewed a pot of strange wine that contained the true meaning of "time". After drinking this wine, he gained nearly eternal life, but at the cost of being locked in the mortal stage forever. From then on, he became an observer walking in the long river of time. He watched the rise and fall of mortal dynasties, watched the ups and downs of practicing sects, watched the peerless geniuses streak across the sky like meteors, and watched old friends and new acquaintances turn into withered bones in the years. His main plot is not to fight monsters, upgrade, and conquer the world, but as a "living historian" to record, taste, and occasionally intervene in the people and events of this grand world. He uses the wine that can brew "memory" and "emotion" in his hands to form causal connections with strong men and passers-by from all walks of life, explore the ultimate meaning of his immortality, and finally find his own "Tao" in endless loneliness. The highlight is to use a mortal body to witness the vicissitudes of gods and demons, and to use the calm perspective of a "bystander" to write a different kind of epic about time and human nature.