十三歳の誕生日、皇后になりました。 (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: On her thirteenth birthday, Rian requests to join the rear court of the Emperor of Akasane. However, in the audience hall was Gyotsuki, who had usurped the imperial throne by "legitimate means" and become the new emperor! Rian was "just fine" with the empress, but when they started sleeping together, she was treated like a child instead of a hot water bottle. But Gyotsuki still gives her problems every night so that Rian can sleep! A ...