Shuurei Kou, born to a lowly noble family, aspires to contribute to her country as a government official. Sadly, her gender prohibits her from realizing her dream. To sustain their impoverished household, Shuurei works multiple jobs while her father scrapes by as an archivist, until an unexpected visitor changes their fortunes. Emperor Ryuuki Shi, notorious for his neglect of his duties and preference for male company, calls upon Shuurei to serve as his consort for six months. Lured by the generous compensation, she accepts the offer and is accompanied by her loyal friend Seiran Shi, who acts as Ryuuki's bodyguard. As they help the young emperor mature into a responsible ruler, palace politics and court life pose a challenge for Shuurei. Based in an imaginary realm, Saiunkoku Monogatari explores the importance of meaningful leadership, the obstacles faced, and the rewards of a thriving nation.