Hyakkakyu no Osouji-gakari: Tensei shita Shinmai Kyuujo, Koukyuu no Onayami Kaiketsu shimasu.

Yui Mei has two secrets. First, she retained the memories of her past life. Second, it is highly probable that she is a daughter of the Sai Kingdom's Emperor. As a certified die-hard fan of Chinese dramas in her past life, she willingly participated in the court lady selection just for the sake of seeing the imperial harem in the flesh.

(Source: Shousetsuka ni Narou, translated)