Wei Shu, a modern construction engineer, transmigrates into the body of Yin Shen, the Grand Preceptor's legitimate son in the Wen Dynasty. Carrying Wei Shu's memories, Yin Shen enters the Eastern Palace to serve as Crown Prince Pei Jingchen's study companion.
The Crown Prince Pei Jingchen lost his mother as a child. He appears amiable, but is cunning beneath the surface. Only around Yin Shen can he truly be himself. He even begins to depend on Yin Shen, developing feelings for this handsome study companion.
Just as Pei Jingchen realizes he has fallen for Yin Shen, Yin Shen has already become thoroughly disillusioned with the man he once loved.
The Crown Prince's “win-her-back” hell begins.
Unaware that Yin Shen is a man disguised as a woman, Pei Jingchen can only think he's fallen for another man, and the Eastern Palace is in turmoil.
The plot has ups and downs and makes you want to keep watching.