Mayumi is Mahiro's sister and was married to Muramasa for a period of time after he escaped from the Mibu clan. Mahiro found Mayumi's dead body; Kyo was beside her, holding a bloody sword in his hand, which made Mahiro believe that he was the killer.
Spoiler
She was killed four years ago by Chinmei in manga and Genza in anime. However, Mahiro doesn't find out the truth until much later in the story.
No comments