The Archangel Chihiro was one of the archangels of the Holy Writ, and in fact a fake identity assumed by Maruyama Chihiro of the Operation Ark command staff.

According to Temple lore, Chihiro was the patron of personal protection and the "Guardian of Cities", as well as the scriptor of the archangels, responsible for writing down the history of Safehold and the fall of Shan-wei. The Book of Chihiro, the last book added to the Writ, was written by him. He also had an order of priests following his teachings. (OAR)