[Mind Reading + Transmigration into a Book + Everyone's Darling + Underdog Comeback + Goofy Comedy + Feel-Good Story + Fake Cultivation + Farming in the Early Chapters + Invincible in the Later Chapters]
Also titled: "The Entire Court Wants Me to Be Empress!"
The fiery Lin Nuannuan transmigrates into a book, and it's a male-oriented novel. She's a demure princess? Her real identity is a cannon-fodder character, the younger sister the male lead must kill to prove his Dao!
The male lead, Lin Hanye, uses his System to deduce that the future child of his princess sister will seize his throne, so he plans to kill his own sister without hesitation.
The various stepping stones in Lin Hanye's path overhear Lin Nuannuan's thoughts, causing them to defect en masse. They all secretly join the princess's faction and turn their lives around!
When Lin Hanye announces to the world that he is about to ascend the throne...
The chancellor: Your Majesty, I have a proposal. The throne should pass to the princess!
The ministers of the Six Ministries: We agree!
The General Who Guards the Far Reaches: I agree!
The princes: We support this. It's for the revival of the dynasty!
The late emperor's edict: Let the princess take over!
The old eunuch: May this old servant say something? This old servant is willing too!
Note: There is a couple (one-on-one), a warmhearted male supporting character (utterly loyal), a nonhuman love interest (a powerful immortal from the Immortal Realm), and a young admirer.