Sadako Yamamura

As a human, Sadako already had paranormal powers, inherited from her mother Shizuko Yamamura, a fortune teller from the island of Oshima.
When Shizuko was accused of being a fraud, she was overcome with grief and committed suicide.
After her mother's death, little Sadako's powers clashed in her own mind, resulting in her being split into two, a gentle and shy side and a malicious and sadistic one, however, her evil side only emerged when Sadako was in danger.

One day, while she was reflecting and still tormented by the pain of grief, Sadako was hit on the head and thrown into a well, and there she remained for 7 painful days. She died, in the cold and darkness, the only sight of sunlight being a ring of light that the well lid formed above her. Sadako never knew who her killer was.

Sadako today is what can be called a vengeful spirit (Onryō) in simple terms, she is a dense concentration of psychic energy, generated by an extreme will for survival and retaliation.
the good side of his psyche was erased, or at least extremely repressed, chained under darkness and malevolence.
Victims of her revenge without discernment of target die within 7 days, just like Sadako.

Sadako's hatred gave rise to a videotape imbued with nensha power.
Those who watch the tape become targets of a powerful curse that will kill the viewer within a time limit of 7 days.

Sadako knows exactly where the viewer of the tape is at all times.

Weakness: The only weakness of the cursed video is when the victim of the curse shows the video to someone else before the 7-day time limit, the target of the curse is changed and the original target is saved. In other words, their death can be avoided by sacrificing another person.

When she was alive, Sadako was an outcast, always called strange and weird, and she was too shy to refute such accusations. As a child, she had only one friend, the only person who saw her as "normal."

At the age of 19, Sadako developed a passion for theater and joined a troupe where she felt welcomed, in a way, she ended up leaving the troupe after suffering harassment within the group.

When she returned to her hometown, the only friend Sadako knew had disappeared, she couldn't help but have a selfish attitude and hold a grudge against her friend for leaving.

Sadako remained in Oshima until the day of her assassination.

Sadako is capable of killing using only her own mind, either by transmitting mass information into someone's mind, leading to sudden death, or by twisting the victim's body using telekinesis.

Telekinesis, telepathy, teleportation, among various mental powers. Sadako is able to read even intentions, predicting actions before they happen.

Sadako can contort and transform the form of her manifestation without feeling any pain.

Possession: Sadako can kill a person's mind, causing brain death, after which, if she wants, she can occupy the body, assuming all the victim's characteristics.

Supernatural strength and supernatural speed

Technopathy: Sadako can manipulate electronic objects to her advantage, as well as being able to manifest herself through images and sounds.
If Sadako's image appears on a screen, she can jump out, as if it were a simple passage to reality.

Gaze: Sadako can look directly into a person's soul and mark it, after which the person will die whenever Sadako wants.
When she is staring into someone's soul, her eyes glow red.

Intangibility and unlimited regeneration

Sadako never knew anything about her father, living only with a stepfather.
However, the truth is that it was generated from a pact between Shizuko Yamamura and an unnamed oceanic entity.
This oceanic entity can be considered Sadako's biological father.

Sadako condenses her power to create a physical manifestation of herself, she usually chooses for the manifestation to look like

Skin: pale grayish almost white

Hair: long and black, it almost seems to absorb light, Sadako's hair is most of the time hiding her entire face.

Eyes: reddish and wide, veins and blood are visible like the eyes of someone deprived of sleep for a long time, their pupils are black

Clothing: She wears a loose, rumpled white dress, her dress has a collar with three buttons

bare feet

Her short nails are black and she has several scars on her hands, a way of portraying her failed escape attempts from the well.

Sadako can change the aspects of her manifestation as she wishes, but her appearance will always seem at least a little corrupted by the extreme hatred her soul feels.

Sadako keeps her face hidden by her hair, and seems to be able to see things around her even so, as if she senses what is necessary.
When she decides to show her face, she will only leave the left side visible so she can stare at the victim with a single red eye.

Sadako's movements are mostly strange and sinister, as if she were a malfunctioning video itself, often freezing in the middle of a fast-forward or pausing in time for long moments or doing reverse movements.

Sadako keeps her shoulders rigid, her arms lowered in front of her body, an unnatural, hunched posture, looking down on her victims as she executes them.