A rumor silently spreads on the internet, that Yamata no Orochi on Mount Oguro with grant any 8 wishes. Hearing this, Kitaro goes to hear the details from Yobuko, who knows everything that goes on in the mountains. Meanwhile, Saitou, who laments his terrible luck, hears the rumor. He immediately heads for Mount Oguro where he meets the uncanny Yobuko. When Yobuko hears that Saitou wants to meet Yamato no Orochi, she passes him a large diamond. It begins to shine brightly, and before he knows it, Saitou is sealed inside it. Face-to-face with the enormous Yamato no Orochi, Saitou tries desperately to run away. Then, Yamato no Orochi...!?