-Nihongi: Chronicles of Japan from the Earliest Times to A.D. 697/Book VII
I interpreted the “dwelling in holes in winter” as describing the Jomon-era pit houses with thatched roofs and a sunken floor. This is an Emishi summer home; the “nest” is a simple grass hut. A woman wearing a dress made of Yamato cloth crouches in the woods near the hut with a bronze knife in her hand.
The female figure is a Khurasan figure with some slight modifications to give her a dress. The hut is from Baueda; the same one I used for a Jomon pit house but painted to look more like grass than thatch and with bamboo poles. The trees feature Japanese Black Pines (as close as I could get) instead of the bamboo I used on my Jomon/Yayoi camp to suggest northern rather than central Japan.
