Hime-sama no Shitto de Youjo ni Sareta Danshaku Reijou desu: Hakkin no Kishi-sama kara no Kyuukon!?
The Baron’s Daughter’s Childish Transformation: An Envious Princess’s Curse and the Platinum Knight’s Proposal?!·姫様の嫉妬で幼女にされた男爵令嬢です ～白金の騎士様からの求婚!?～
Berna, a castle maid, occasionally converses with Dietrich, a striking young man who guards the prince. Dietrich is ordered to marry the princess of a neighboring kingdom, known for using questionable magic. Berna is assigned to serve at their engagement party. When the princess arrives, she casts a spell on Dietrich, compelling him to propose to the person he truly loves in front of the guests. Berna, who had been helping prepare for the proposal, is stunned when Dietrich asks her to marry him instead. The princess, furious at this turn of events, curses Berna, transforming her body into that of a child.