Every world has laws that keep its timelines stable. When those laws are broken, flaws begin to appear. The administrators, born from the laws themselves, have no choice but to patch the flaws and find out why the laws vanished.
When the administrator can't discover the cause, the only option is to restart the world, experience its new system all over again, rebuild its laws, and keep the world stable.
Xi Han is the administrator of her world. When the laws suddenly failed, she rebuilt the system, gave up her cultivation and memories, and started rewriting the laws from the first timeline. If an administrator reaches the end of every timeline without solving the problem, they will be destroyed along with the world.
Ling Ao entered the timelines with his master, Xi Han, to search for the truth and rebuild their world.
Theme: This is going to be the death of me.