Ryuuko Matoi

Ryuuko Matoi is 18, was thrown out with the trash by her mother, but her dad saved and revived her life. That said, she lived by fighting bullies, and when someone murdered her dad, she went on a journey to find his killer. The only clue to the killer was half of an enormous scissors that could be used like a sword, which was the murder weapon. Ryuuko believes she knows who killed him, but she doesn't know what to do.