In the late Nara period, the position of Naishi no tsukasa who acted as corresponding clerks between an emperor and the kokyu or male officials came to be treated equally to that of the Kura no tsukasa that ranked first in the junishi and preserved three sacred imperial treasures.
奈良時代末期に入ると、天皇と後宮あるいは男性官人との連絡係を務める内侍司の地位が、三種の神器を保管する十二司筆頭の蔵司と同格として扱われるようになる。