Kuromaku Ouji kara Kekkon Sagi ni Aimashita

A woman with martial arts abilities who never had the opportunity to date in her past life is reborn into the body of Iona, a noble in a fantasy romance world destined to marry. She vows to avoid marriage and befriends a boy in her garden who is also unhappy about his arranged future. In an attempt to comfort him, she jokingly agrees to marry him. Years later, she discovers she is engaged to Carvain Tenebreth, the ninth crown prince, as a result of the boy's actions. Iona tries to escape and seek a divorce, but Carvain persistently pursues her, determined to keep her as his wife. The story explores whether Iona can find freedom and love on her own terms or remain bound to her determined husband.