Maria Ushiromiya is a key character in the visual novel and anime series 'Umineko no Naku Koro ni.' She is the nine-year-old daughter of Rosa Ushiromiya and a member of the wealthy Ushiromiya family. Despite her young age, Maria is deeply fascinated by magic and the occult, often acting and speaking in ways that seem odd to others. Her innocence and strong belief in witches play an important role in the unfolding mysteries of the story.