Noriko Morisaki is a high school student who appears early in the story of Sadako 3D. She becomes one of the first victims of the cursed video that circulates online. In the classroom, she seeks out the footage, and her teacher Akane Ayukawa takes her cellular phone in an attempt to return it after class. Despite this intervention, Noriko later watches the video at home and dies as a result. Her death draws the attention of Detective Koiso, who visits the school to interview Akane and the other students. Noriko’s role is limited to that of an initial casualty, serving as a catalyst that pulls the main characters into the investigation of the curse. No further information about her background, personality, motivations, or abilities is detailed in the film.