nihongo|Hara Masako|原 真砂子|Hara Masako
anime voices|Rie Kugimiya|Jad Saxton
Born: July 24
Blood Type: AB
Height: 152 CM
A spirit medium with a popular television show and the ability to speak to the dead, Masako is a 16 year old girl who resembles a Japanese doll because she is always wearing a kimono, even while sleeping. She has romantic feelings towards Naru and is jealous of how casual and free Naru is when dealing with Mai. This initially causes friction between Masako and Mai, as she views Mai as a rival; however, after Mai saves her in the Blood-stained Labyrinth File, they reach a shaky truce. In the novels, it is revealed that Masako knows of Naru's true identity and his psychic powers and has used that secret to extract favors out of Naru himself, despite his reticence to participate in social events.