After the Divorce, I Flirted With...

Luo Ruiyan transmigrated into a book, becoming the white moonlight in a novel about transmigration into a book. Though she was easygoing and never competed for anything, the male lead cherished her despite his original wife, giving her the stars if she asked for them, and the moon if she wanted it.

Ye Shu had it much worse: she transmigrated into the original wife. :)