After I Died, I Became a Ghost Officer Thanks to the Comments. This Is Awesome

After Reading So Many Palace Intrigues Full of Scheming, This Is My First Time Reading One Where the Female Lead Just Wants to Escape

I'm looking for books similar to I Was Reborn as a Concubine-Born Daughter and Just Want to Take It Easy. The female lead is a transmigrator who doesn't like attracting attention and always stays behind the scenes, but she's very kind and righteous. The original owner had always wanted to find out how her birth mother died, so after transmigrating, the female lead also avenges her mother. At the beginning, she also...