Ononoki Yotsugi is rendered as a calm, doll-like figure with pale skin and a restrained presence. The sculpture captures her signature stillness through a poised pose, with clean lines that emphasize her elegant, minimalist silhouette. Her hair is long and flowing, framing a composed face that seems to observe the world with deadpan curiosity. The outfit is meticulously detailed, featuring tailored seams, subtle texture, and the contrast between dark accents and pale clothing that echoes her ethereal nature. The paintwork highlights delicate shading on the cheeks and lips, while the base remains unobtrusive to keep the focus on the character's composed aura. This figure exudes quiet dignity and otherworldly charm.

In the Monogatari series, Ononoki Yotsugi is introduced as a living doll with a paradoxical blend of innocence and practical wit. She moves through scenes with deliberate calm, offering dry, literal comments that cut through tangled supernatural events. As a spiritual being connected to the world of apparitions, she aids the protagonist during critical arcs, providing protection or clarification when ordinary means fail. Her presence often marks a turning point in stories about memory, loss, and the effort to understand phenomena beyond ordinary humanity. Though seemingly mute at times, her actions speak volumes about loyalty, curiosity, and the quiet strength of a being who endures.