Are there any ancient novels about the female protagonist being reborn, being saved by the male protagonist, bringing her mother away, and the male protagonist being liked by the crown prince that are worth recommending?

I recommend "The Coolness of Time" to you. This is an ancient romance novel. The female protagonist fell into the water in the 21st century and was reborn in ancient times. In this world, she had a noble status and became one of the three concubines of the Ninth Prince. The male supporting role was the crown prince. He had a tender shell but an old heart. He had been reborn for revenge and had fallen in love with the female lead from the beginning. This was a journey filled with excitement and emotions. I hope you will like this novel. Muah ~