Descending from a long line of assassins, Masumi was raised as a weapon. She has deep knowledge of witchcraft and demonic lore. Masumi has seen everyone that she has loved perish in their war against demons, so she is careful not to allow herself to get too close to others. Aside from her immense skill in martial arts and witchcraft, Masumi’s swords are also a great asset. Both of her blades are imbued with the essence of a powerful demon, which allows her to teleport, open portals, and understand demonic languages.