The plot follows a familiar but effectively executed premise: a declining rural village, an ancient pact with a slumbering malevolent deity, and a family—the mother (Sayoko, a widow in her late 30s) and her daughter (Mio, a reserved high school student)—chosen as the sacrificial vessels. The protagonist, a folklorist named Kaito, arrives under false pretenses to document the “local harvest festival,” only to discover he is either the ritual’s orchestrator or its final component.
The inclusion of "oyako" (parent-child) in the phrase introduces a poignant layer of complexity, suggesting that the narrative might delve into the sanctity of familial bonds and the impacts of corruption or evil influence on these relationships. This could serve as a commentary on the vulnerabilities within family dynamics and the ways in which they can be exploited or damaged.
