Not much is known about the archivist, but in passing conversations here and there about the Fatui his name has probably come up once or twice. He appears to be the Fatui's leading expert into ruins exploration, ancient technology, and abyssal magics. A skilled gossiper or eavesdropper may have heard more about his poor tale, where upon the archivist lost his memory while attempting to use an ancient artifact in Sumeru to restore the life of his late wife.
However skiddish he may seem, make no mistake, the Archivist has earn his place as the 8th strongest Fatui member.