Toueizu Clan

The Toueizu Clan (とうえいず一族, Toueizu Ichizoku) is a special clan residing within Kusagakure. Since Kusa is known for diplomacy, having ways to keep records of events is very important to them. The Toueizu clan houses a unique classification of ninja known as archivist-nin who fill this role in the village.

Memory Recording/Projecting Techniques
The Memory Recording Technique allows the user to chronicle anything they see or hear. Once activated, the user’s normal brain functions stop. A special section of the brain is then turned on, allowing any observation to be imprinted in their heads. This area of the brain is an area that cannot normally be accessed, so the user is not aware of the information after ending the jutsu. This ensures that the information cannot be viewed by others if captured. The only way the information can be retrieved is by using the Memory Projection Technique.

Using special crystal prisms, the Toueizu clan can project information recorded with their Memory Recording Technique onto a flat surface. Like actual recording devices, they can pause and rewind the projected events. To aid in accessing this hidden information, special helmets are worn that block the user’s sight, hearing and smell.

Clan Training
To use these unique abilities, Toueizu clan members must go through a difficult training process. When children of the clan come of age, they are taken to a cavern outside of the village. There they excavate a chunk of crystal that grows there. As they grow up, they flow chakra into their crystal until it takes a geometric form. Once this happens, the prism is complete and can be used to project their memories. Each prism takes on a different shape, based on the users chakra signature and personality.

During this prism growth phase, members begin training with their Sense Blocking Helmets. They are to wear the helmets as often as they can, learning to complete minor tasks without the use of their sight, hearing, or smell. Tasks can include things like navigating a maze and finding certain objects in a room. The focus they gain during this period will help them when using their hidden techniques. A sort of hazing process takes place for new members begining their training in which experienced members have them eat a meal with the helmet on. Although it does serve as a training method, it's mostly so they can watch younger members try to find their mouths.