Reincarnation.

Somehow, Aubrey found herself transmigrated into the novel she read before her death. She wasn't the villainess, or the protagonist. She wasn't incomparably beautiful, or was she from rich noble family. She wasn't even mentioned in the novel, but she had a talent, & mind of steel. She was determined to save the villain, & to find out the reason for her transmigration, not to mention in her own body. But, as further she goes, the more questions she find... about her past.
Let us begin the journey with our unlikely heroine, & her quest to save the villain all while struggling to find the answers about her life.