While everyone else transmigrates into a book as the protagonist, Kui Xi becomes a minor character mentioned only in passing.
That minor character was supposed to die in an epidemic, but Kui Xi's transmigration gives her a longer life.
The only catch is that her way of extending her life is rather unusual: she has to borrow years from ghosts.
“Years” are the protective charms that let ghosts remain in the mortal world, so naturally they are reluctant to lend them. A struggle between life and death is bound to follow.
After dying for the first time, Kui Xi discovers that the story starts over.
As she borrows years, Kui Xi awakens the power of the Chinese zodiac, the strength she needs to survive in this world, and meets a few interesting friends along the way.