According to the Kojiki, Onogoroshima was created (kuniumi) when the divine couple Izanagi and Izanami churned the sea with the Amenonuhoko (heavenly spear) from their vantage point on the floating bridge of heaven. When they raised the spear from the ocean, drops fell from the spear, forming the island. They built a palace on top with a great column in the middle. The siblings walked around this pillar in opposite directions, and when they encountered each other, they were married. This island is where Hiruko (Ebisu) was born. The island is mentioned only thrice in the Kojiki, at ch.3:3, ch:7:25, and ch.111:32.