Transmigrated as the Legitimate Daughter’s Foil, the Lucky Concubine-Born Girl Goes on a Rampage

As a concubine-born daughter, she has a hard life, constantly bullied and plotted against by her legitimate elder sister. While her sister feasts, she goes hungry; while her sister wears fine silks and skirts, she wears coarse hemp... When her sister is honored with a noble title and lives in splendor, the concubine-born daughter dies a quiet, miserable death in the wilderness. But later, a koi fairy who sacrificed herself for the Dao falls into the mortal world and takes over the girl's life. And so everything begins to turn around. There is mockery from society ladies and noblewomen, schemes born of old grudges from those who once looked down on her, and her fiancé's ever-growing loathing... All the hardships and suffering the concubine-born daughter endured rebound onto her legitimate elder sister. Her sister can't understand it. She digs a storybook out of a chest and clutches it in her hands, roaring in helpless fury: “My whole life is written in this storybook. I'm the heroine blessed with fortune. Why am I the one who dies miserably in the end?” The koi fairy: “Sorry, I wrote that storybook.”