Shirou's mother and the only family he has. While Shirou is often exasperated by his mother's overly-affectionate (sometimes over-protective or possessive) displays, he deeply cherishes her and often humors or otherwise tolerates her childish behaviors. He deeply respects his mother and seems to have an unquestionable trust in her despite her frequent absences due to "work". Shirou's care and loyalty to his mother is attributed to an as-of-yet unnamed event seven years ago, Shirou having said that she "gave him his name seven years ago".