Clinical psychologist and protagonist. Investigates her missing brother and a mysterious telekinetic girl linked to Sadako's curse. Travels to Oshima Island, learns the truth about the cave shrine, and witnesses her brother's sacrifice. Ultimately killed by Sadako in her hospital room.
Ishida becomes Mayu's practical and investigative partner in uncovering the origin of Sadako's curse.
Ishida tells Mayu about the restricted cave shrine on Oshima Island and later accompanies her into the cave to investigate the curse.
Mayu is the central investigator and final victim of Sadako's supernatural threat.
Mayu investigates the girl's connection to Sadako, experiences visions of Sadako, and is ultimately killed by Sadako in her hospital room.
The Old Woman provides Mayu with crucial historical information about the cave shrine.
The old woman in the cave explains that abandoned babies were left in the shrine and that Sadako fed on their souls.
Hatsuko's death and actions form the initial case that draws Mayu into the curse.
Detectives tell Mayu that Hatsuko died in the apartment fire, while Mayu investigates the imprisoned girl and the fire's connection to her brother's d...
Explore the full interactive character relationship map of Sadako