| Kai and Ju were, in many cases, used independently in books, Kuden (oral tradition), and legends, and there was no unified standard in numeration of story and tier, which indicates a possibility of the expressions being handed down as local ones. |
書物や口伝、伝説上の話では階や重が単独で用いられることも多いが、かつては階層の数え方に統一された基準はなく、局地的な呼称として伝わっている可能性がある。 |