Kayako Saeki is a fictional character from the Japanese horror film series Ju-on, which is also known as The Grudge. She is depicted as a vengeful spirit who haunts a house in Tokyo, seeking revenge on those who enter. Her character is known for her long black hair, pale skin, and eerie, unsettling presence. In the films, Kayako's backstory reveals that she was a victim of domestic abuse, leading to her tragic death. This traumatic experience fuels her anger and desire for vengeance, making her a central figure in the series' themes of grief and retribution.