Flames enveloped the young girl's home. The orange tongues were merciless. They devoured the entire building, and her parents.
The fire was an accident, they said. The stove was left on, or perhaps embers caught on the carpet from the fireplace. However, the girl knew this was no accident. She saw those haunting yellow eyes peek out from under a hood and stare at her hungrily. This was no accident. It was murder.
Hatsune Ito decided to devote her life to hunting the murderer, with Hibiki and Kokoro Akamine by her side. The twins have been her best friends since they met on the playground. They did everything together, and that hasn't changed.
With Hibiki and Kokoro being weapons, Hatsune decided the best course of action was to become their Meister. She would travel around on mission and be able to gather information on the killer.
Of course, becoming a Meister meant enrolling at the Death Weapon Meister Academy.