All characters are original Japanese figures in a contemporary Japanese setting, with voice cast limited to Japanese actors (Maaya Sakamoto as Shiki Ryougi, etc.) and no alterations to established source material. Episode plots center on graphic violence, rape as villainy, suicides, and personal trauma without any framing around systemic oppression, identity politics, or critiques of traditional norms. This traditional Japanese production and casting follows the source novels without any diversity mandates or character changes, keeping the focus squarely on the Ryougi family lore and its dual yin-yang personalities Shiki/SHIKI.

The core themes of death perception and moral emptiness draw directly from religious and psychological concepts rather than activist messaging, while the mature dark storytelling prioritizes mystery and horror. There are zero creator statements or narrative elements addressing patriarchy, queer identity, or social justice, resulting in a work free of progressive ideological intrusions.