Torment Canceler

Memory Magic: Torment Canceler (記憶魔法『』) is a Memory Magic spell.

Description
With an open grimoire, the user creates a crossbow mounted on their forearm. This crossbow fires bolts that erase the short-term memory of anyone they strike. Multiple bolts can be fired in rapid succession.

Although the bolts physically pierce people and objects, they do not appear to cause any physical harm.