Kumobi

Kumobi (蜘蛛 火, lit. "spider fire").

In the legend in the village of Tenko (Shiki District, Nara Prefecture (now Sakurai)), hundreds of spiders turned into a fireball in the air. Similarly, in Tamashimayashima (Kurashiki, Okayama Prefecture). When a red fireball appears over the forest near the Inari temple on the island, it is said that it dances over the mountains and forest, and then disappears.