Ranma Saotome and the Maiden's Daughter

Kasumi finds out that she has a different mother than her sisters and that she must go to America to learn how to protect herself from the dangers that brings her. Nodoka (who has her own secret) convinces Ranma to marry Kasumi so that he can protect her and as a way out of the fiancée mess. Kasumi, daughter of Hestia (Athena style). Ranma, son of Inari (Nodoka's real identity).