Komurasaki is a Banned Doll, one of the Setsugetsuka series of automatons created by Karyusai Shouko. She represents the Flower in this trilogy and is the youngest sister of Irori and Yaya. She has long red hair tied into twin tails and wears a purple sleeveless kimono with white garter stockings and off-white sandals.

Her personality is bright, cheerful, and freewheeling. She is mischievous and loves to tease both her sisters and the puppeteer Raishin Akabane, often behaving like a playful younger sibling. She occasionally tries to outshine Yaya in front of Raishin and, like Yaya, exhibits a tendency to disrobe in his presence, a trait that reflects her uninhibited nature. She calls Irori onee-sama, showing a respectful attitude toward her older sister.

Komurasaki is a supporting character who appears in the main series and its specials. Her role primarily involves aiding Raishin and Yaya during conflicts, using her unique abilities to disrupt opponents. She does not undergo major personal development over the course of the story, remaining a consistently animated and loyal presence who lightens tense situations with her playful antics. Her relationship with Yaya is especially notable for the sibling rivalry and affection they share, and she interacts with Raishin in a familiar, teasing manner that underscores her membership in the Setsugetsuka family.

Komurasaki possesses the Yaegasumi magic circuit, which grants her the power to neutralize a target’s senses of sight, hearing, and smell. This ability can disorient enemies and create tactical openings in battle. She is also described as being able to produce hallucinations, making her even more formidable in combat. As one of the Banned Dolls, she is considered an exceptionally powerful and dangerous automaton. Despite this, her combat role is secondary to Yaya’s, and she is rarely the focus of direct fighting, instead using her sensory disruption to support allies.