Dajimu

is a member Konohagakure village's ANBU sub-department, Root.

Background
He, like all members, are young orphans adopted into the organisation and trained to lose emotions, in order to better accomplish missions. As Root members each uses a codename, it is unknown what Dajimu's real name is, if he even has one. Even though the organisation has been officially disbanded, Dajimu remains loyal to its head, Danzō.

Five Kage Summit Arc
Dajimu has so far only been mentioned once by name, and has yet to make an actual appearance. He and Tera had both been secretly assigned by Danzō to assassinate Anko Mitarashi, but due to the village's current situations, their mission has been delayed in preference of tracking Kabuto Yakushi before she does.