- This article is a stub. You can help Takashi Matsuoka Wiki by expanding it.
Nao was a lord in the north of Honshu Island.
Nao agreed to the marriage of his daughter Midori to Yorimasa, the son of Lord Kiyori even though Kiyori had had a vision that Midori would die giving birth to her second child.
Nao took the name Zengen and began rebuilding Mushindo Abbey into a monastery. Kimi and Goro were his only helpers.