Sadako (Aoko) was the protagonist of the Korean movie Sadako 2015. She was a baby girl who survived an accident in the 1970s and suffered from intermittent amnesia due to lack of oxygen. She often forgot her past but also often recalled some terrifying experiences. In the movie, Sadako's story took place in an abandoned amusement park. This amusement park used to be a sex place, and Sadako's parents also worked there. As Sadako grew up, she gradually learned the truth about this amusement park, but she also gradually suffered from various horror incidents. Sadako's image in the movie was very realistic. Her image and the horror scenes in the movie made the audience feel deep fear and uneasiness.