Zeng Mu, once a genius savior, was betrayed by his most trusted junior disciple, the sect traitor Su Han, in his last mission, causing the world line to collapse and countless worlds to fall into destruction. When he woke up again, he found that he was back ten years ago - before all the disasters began.
Zeng Mu, who has returned from rebirth, has a special ability [Time Backtracking], which can forcefully restart time when he dies or the world line falls into a desperate situation. This time, he vowed to save everything that had been lost: from the Fuyuki City fire in "Fate/stay night", to the Witch Cult conspiracy in "Re: Zero - Starting Life in Another World", to the bronze tree incident in "Tokyo Ghoul"...
However, the inertia of history is far beyond imagination. Former allies become enemies, characters who were supposed to be dead become active, and a larger conspiracy looms over the multidimensional universe. What's even more deadly is that junior brother Su Han seems to have retained part of his memory and is secretly weaving new traps.
When Zeng Mu gradually uncovered the truth behind the "stability of the world line", he realized that what he needed was not only strength, but also the determination to redeem each character. But time is limited, and every restart will consume his vitality, and Su Han's final plan is about to be launched...
