Ghost Hunter

Ghost Hunter (オスト ハンター, Osuto Hantaa), also known as Monster (モンスター, Monsutaa) is a mass-murderer as well as a Hunter of Ghosts. She is a dual-wielder knife users and is ranked among the top 10 of the most dangerous criminals ever to grace the country of Fiore`s landscape.

Throughout her entire career as a Ghost Hunter, she was regarded as a high-level threat with squads of Mages being sent to eliminate her only to them to return with their throats slashed out and their hearts torn out of their chests.