Please give me the name of an ancient novel.

The content was probably about the Crown Prince that the female protagonist liked at the beginning being poisoned and killed by a powerful official. The Crown Prince's younger brother (male protagonist) took over the Crown Prince and ascended the throne. The female (Yue, remember this name) that the male protagonist liked had a good relationship with the female protagonist. When it came to the selection, Yue was unable to participate because she was not old enough. After the Crown Prince died, the female protagonist did not want to be ordered by her parents to marry someone else in the future. She decided to enter the palace to be the male protagonist's concubine. She wanted to find the murderer who killed the Crown Prince. At the same time, she wanted to clear the obstacles for Yue to enter the palace a year later and pave the way for her. Because the person that the female protagonist liked at the beginning was the Crown Prince, the Crown Prince had always nurtured the female protagonist as if she was a future empress, and she was very scheming. And Yue had always been pure and timid. Later on, the cliché Yue became deep and ruthless in the palace struggle, and harmed the female lead many times for her own sake, and the female lead and the male lead got closer and closer... But the style of writing is very, very good! Please help me think of a name, I really can't remember.

Answer 1

The name of this ancient novel was " Return to the Dream ".