Phoenix Wrong: the Scheming Prince, the Foolish Concubine

By some mistake, she traveled through time, but the timing was not right, and she ended up in an ancient tomb. She also met the prince who was being hunted and rescued him. However, she was not favored like in the time-travel novel. She lived a prosperous life in ancient times. On the contrary, she lived a miserable life. This also started the days of falling in love and killing each other with the crown prince.