Kiraware Majo Reijou to Dansou Ouji no Konyaku

Cursed by others as a "witch," Evris, the youngest daughter of the House of Bradley, is engaged to Mark, the fifth prince of the Kingdom of Klengel. When he abruptly announces that their engagement is broken off, Evris is plunged into despair. However, someone reaches out to her instead... The cross-dressing (female) crown prince of a neighboring country!? This is the story of a red-haired witch who manipulates shadows and a cross-dressing (female) crown prince who is serving as a body double for her missing older brother. The curtain rises on a fantasy romantic comedy of a girl being teased by a princess! (Source: Ichijinsha, translated)