The narrative draws from traditional Japanese folklore, rural customs disrupted by a 1978 dam project, possession, and generational curses, with all characters—Kobayashi, Junko Ishii, psychic girl Kana Yano, medium Mitsuo Hori, and actress Marika Matsumoto as herself—portrayed by Japanese actors in an authentic domestic setting with no alterations to established source material. This premise stays rooted in Japanese demonology and village rituals, delivering a straightforward supernatural story without any modern activist framing or identity-based messaging. The film maintains a culturally consistent 2005 Japanese setting throughout, focusing exclusively on themes of curses, possession, and the clash between modernization and folklore.

There are no race or gender swaps, no forced diversity elements, and no creator statements introducing social justice angles. By confining itself to these traditional horror motifs, the movie avoids identity politics, systemic oppression narratives, or any progressive ideological overlays, allowing the core story of generational curses and ritualistic elements to stand on its own merits as pure entertainment.