Maya Tomoe is Takeshi's younger adoptive sister. When they were younger, Takeshi saved Maya from being run over by a car by pushing her out of the way, leading to him losing his legs. Maya feels intense guilt over the incident, and Takeshi blames her too; however, after she is put in danger by the Egrigori, and Ryo and Hayato help Takeshi save her, the siblings start to mend their relationship.