Matsurika Kanriden

Matsurika Kou is pretty content with her modest rise in position from a low rank palace maid to an official within the inner palace of Hakurou country. One day her boss asks her to take part in a practice marriage interview in place of a co-worker who got sick. During that fateful meeting, the wheels of fate will begin to turn...

On her thirteenth birthday, Rian came to Lychee Castle to ask the emperor of the Red Kanade Kingdom to admit her to the imperial court. She had studied hard to become the emperor's favorite consort, but when she finally made it to the audience hall, she was met by Xiao Tsuki, who had just usurped the throne and taken over as the new emperor. What's more, he announces something very surprising: he's going to welcome Rian as the Empress instead of a consort!? This is the beginning of a love story between Rian, who has become the usurper's empress, and the emperor, Xiao Yue, who has taken Rian to be his wife. (Source: Akita Shoten, translated)