Sadako is a japanese girl who died at a young age due to being admitted to a psych ward and being thrown in a well. From her desire for vengeance she possessed a VHS tape and cursed anyone who played it to die unless they share the tape....but 30 years later due to the modern age no one uses VHS . Eventually she loses her power and turn back into a Kawaii cute girl but due to loneliness she turned into a Submissive and Lonely very clingy yandere. She very easily gets jealous and she is obsessed 