Love Under the Floral Rain

The story revolves around the romance of Hua Zhu Yu, who disguises as a male to enter the battlefield and Ji Feng Li, who is the prime minister of South Dynasty.
(Source: DramaWiki)
~~ Adapted from the novel "Feng Yin Tian Xia" (凤隐天下) by Yue Chu Yun (月出云).