The Wicked Villainess's Pocket Dimension Holds the Heir Apparent

[1v1, Both Pure + transmigrate into a book + System and Pocket Space + Infrastructure + Sweet Romance + Lighthearted]

Tu Yue, an overworked office worker who only wants to eat her fill and wait for death, transmigrates into a book as a cannon-fodder supporting female character, and one who is tricked into becoming a concubine, at that. Luckily, just as the transmigration god closes one door, he leaves her a window: the doomed character is still a child, so there's time to change things.

With a pocket space at her disposal, a life with plenty to eat and drink is within reach. But her father is a philanderer, and her mother is a weak woman with more ambition than ability, who can only sulk in her room. For the sake of a stable future, Tu Yue carefully recalls every palace-intrigue drama she watched in modern times. Before long, her days are getting more and more comfortable...