I Transmigrated into a Book and Saved the World by Clearing the Protagonist's Name

As if transmigrating into a book weren’t bad enough, she’s become a villainess who has already committed a terrible crime. The best outcome would be never seeing the hero and heroine again, but Bai Lulu has transmigrated into the story to lower their corruption levels and save the world! Bai Lulu is exhausted. The hero and heroine are already pointing their deadly swords at her throat. From the very first day after transmigrating into the book, Bai Lulu has been rushing to redeem them. She dotes on the heroine, keeping the impressionable girl from falling into the old man’s trap; she gives the hero everything she has, risking her life again and again because she’s terrified he’ll kill her. She keeps all the hardship to herself, but why does her own villainous mother keep trying to kill the hero and heroine? Bai Lulu is exhausted. Bai Lulu wants to back out. Bai Lulu can’t take it anymore. Bai Lulu just wants to sleep... (P.S. The reader group chat is 1048505071. Cuties, come join us~)