The story takes place in a cultivation world called the Xuantian Continent. Spiritual energy is abundant there, sects abound, and mortals can become immortals through cultivation. However, over the past hundred years, mysterious "space-time rifts" have appeared across the continent, throwing the laws of time into chaos and causing many cultivators to die unexpectedly while practicing. The protagonist, Ye Mo, discovers that he has a special "time-reversing spiritual root" that allows him to briefly turn back time, though each use comes at a terrible cost.
Ye Mo is judged to be a good-for-nothing in his spiritual root assessment, but unexpectedly awakens his time-reversing spiritual root. Betrayed during his clan's trial, he dies again and again, gradually mastering the ability to turn back time. During one crucial reversal, he encounters a mysterious black-robed man from the future and learns that he is the key to closing the space-time rifts. Ye Mo decides to join the Jiuxuan Sect, cultivating while investigating the truth. Along the way, he befriends a junior sister with healing abilities and a junior brother skilled in artifact forging. As the story unfolds, Ye Mo discovers that his time powers are connected to a powerful cultivator from a hundred years ago, and that an even greater conspiracy lies behind the space-time rifts.