Rokusho Shrine, like all the other shrines in this part of Izumo, have altars to the land kami Kojin, represented as a serpent made of rice straw.
Nowhere near the scale or complexity of the ones at nearby Adakaya Shrine, and lacking eyes, nostrils, or a tongue, they are however more complex than the equivalent serpents in my area.
Here there are 5 separate altars, suggesting that they come from 5 different communities in the area.
Curiously, one thing they all lack is bodies. They are just heads. I have never seen that before, usually the serpentine body is wrapped around a tree.