There has existed a fierce god named "Otokogami" since the Old Stone Age. The god is called "Otokogami (literally translated as Male God)" because he takes young boys as sacrifices. However, no one actually knew what he really was. The story starts when Wada, a guy who works for a construction company, finds a buried cultural asset during construction in the newly developed residential area of Nissei City. A few days later, something strange happened. A deep hole appeared at the construction site, and Wada's son went missing. The hole leads to a mysterious forest where beautiful women in kimonos and shrine maidens perform a mysterious ritual to appease a male deity. When Wada learns that his son has wandered into the forest, he decides to jump into the hole to rescue his son.