Chiemi Doumoto serves as an in-between animation inspector at Musashino Animation, the studio at the center of the story. She is a mature woman with brown hair cut to neck length and grey eyes, often seen wearing a turtleneck. Doumoto shares a close friendship with Nao Shinkawa, another staff member at the studio, and the two are frequently seen eating and chatting together. During these conversations, Doumoto reveals her personality through her opinions on her colleagues. She openly expresses dislike for the troublesome production assistants Tarou Takanashi and Daisuke Hiraoka, even worrying that her own son might grow up to behave like them. In contrast, she holds high admiration for the production desk colleague Aoi Miyamori, expressing a wish that the studio could employ more individuals with Miyamori's reliable and dedicated qualities. As a mother, Doumoto holds a pragmatic view of the animation industry. She acknowledges that working in anime is difficult and would discourage her son from entering the field, yet she would not prevent him from pursuing it if he were truly determined, recognizing her own career choice as a precedent. In her professional role as an in-between animation inspector, she is responsible for checking the accuracy and quality of the drawings that fall between the key animated poses, a crucial step in maintaining the fluidity and consistency of the final animation. While details of a broader character arc are not prominent, her presence in the studio and her conversations provide a grounded perspective on the industry as a workplace for those with families, reflecting the everyday realities and concerns of its veteran staff members.