The heroine traveled through time to the harem of the Sheng Dynasty and became the concubine, the prime minister's legitimate daughter. She thought she could escape the world safely, but she was killed by the queen's conspiracy. The Fox King disliked her, helped her to be reborn, and gave her a "harem development system". When the heroine enters the harem again, she must defeat the queen and replace her. What's next? Just watch the heroine make a big fuss in the harem.