Oni(demon)-ishi
In a slightly secluded location, away from the old Onsensan map Hell's path with little pedestrian traffic, there is a giant rock called "Oniishi" (Demon Stone). It is said that if you hold your breath and make a complete circle around the stone, your wish will come true. The location of the Oniishi is specified in old Onsensan maps, and in the Onsensan Enki (legend of Onsensan), it is written, "The main deity of this mountain, Kira, is a great demon with four faces. He had various conversations with the bodhisattva Gyōki. There are also demons, and the male demon is called Kuusenki, while the female demon is called Nanrin-ō. If you possess these demons, they will become the Oniishi."The Oniishi in Obama is believed to be inhabited by the male demon Kuusenki, while the Oniishi in Onsensan is thought to be the dwelling place of the female demon Nanrin-ō.