She is a descendant of Jack the Ripper and has carried his bloodline into the 20th century.
When he was 10 years old, in order to prevent his mother from spreading the family history and hindering his future, his father quickly disintegrated his mother with six knives used by his ancestors.
In the winter of the same year, she personally disintegrated her father who was about to kill her. From then on, the space she could see was filled with red threads of death. She could accurately see the organs in the human body, and would disintegrate the people she saw like crazy. Unless you wear sunglasses.