Ouji-sama Nante, Kocchi Kara Negaisage Desu wa! - Tsuihou Sareta Moto Akuyaku Reijou Mahou no Chikara de Mikaeshimasu (Associated Names)

The story of a former Princess whose engagement was broken off and a prince from a neighboring country who was fascinated by the heroine and forced to return home, and joined hands for mutual benefit.