A closed village where old customs remain... There is an obscene custom of offering a village girl as a wife to the mountain god, and Chiyo, the daughter of a poor family, is chosen as the next bride. Chiyo had a crush on Tokuzo, a childhood friend and son of the village chief, but when she heard that she had to obey the rules of the village and protect her parents' livelihood, she tearfully agreed. On the night of her wedding, Chiyo hides in her temple with a statue of a mountain god. Then, a group of men with demon masks rush in... Thinking of Tokuzo, Chiyo dedicates herself to a ritual for her village. If she tries to escape, a painful punishment awaits her... What will be the fate of Chiyo, who