In the interstellar era, Xiao Yin transmigrated and began living a leisurely retirement. She only wanted to tend to her own little patch of land, but instead, she caught the attention of powerful figures from every corner. They all begged to keep her, and she ended up on the throne as empress.
Her scheming stepsister wants to splash water on her? Strike first and play the victim. The royal family wants to make her a puppet? She and her stepsister can both die.