Yan Yiyi, the heroine, accidentally enters the novel she wrote and tries her best to become a "nail house" in the cold palace to return to reality, but makes the emperor Qin Yu, who is sexually continent, very interested.

• Zhang Miaoyi
• Xianzheng Jin
• Tao Hao
• Han Jiahui
• Hao Yiran
• Wang Zifei
• Wang Long
• Zhou Qianxiao