In the remote village of Kitou, the bizarre ritual known as the "Omaro Festival" is held once every few years. Men from the village dress as the deity Omaro and force a chosen female sacrifice to drink an aphrodisiac-laced potion, subjecting her to lewd acts before ultimately covering her face in semen in a forbidden ceremony. Unaware of this dark tradition, Chisato Shoda arrives from Tokyo to care for her injured husband, Kohei. Innocent and ignorant of the village's depraved customs, she is drawn into the horrifying event. This film captures the shocking moment when Chisato is placed on the festival stage and forced to endure its extreme rites. A pure woman experiencing such debauchery for the first time, she is thrust into a surreal, dreamlike nightmare depicted with raw intensity. The film's greatest highlight lies in the disturbing transformation of her innocent mind as she succumbs to the perverse ritual, unraveling in a twisted, otherworldly narrative filled with humiliation, gangbang rape, bukkake, and cum swallowing.