Kiraware Majo Reijou to Dansou Ouji no Konyaku  

The Engagement of the Disgraced Witch and the Cross-Dressing Princess, 嫌われ魔女令嬢と男装皇子の婚約

In the Kingdom of Klengel, Evris Bradley, the youngest member of the royal family, is betrothed to Mark, the fifth prince. However, their engagement is abruptly terminated, leaving Evris devastated. As she grieves, she receives an unexpected message from a neighboring kingdom - their crown prince, who is also female, offers to be her body double in order to help her escape her family's expectations. This sets the stage for a romantic comedy about a red-haired witch and her cross-dressing princess love interest.