Ring 0: Birthday

Other name: Ringu 0: Bâsudei, リング0　バースデイ

Synopsis:

The film takes place 30 years prior to the events of Ring, and depicts the life of 19-year-old Sadako Yamamura, the antagonist of previous films. In this film, her role shifts to that of a protagonist.

Also known as: Ringu 0: Bâsudei, リング0　バースデイ