Fujiwara no Teishi, a documented historical empress consort of the Heian period associated with *The Pillow Book*, shows no appearance in the anime *Chōyaku Hyakunin Isshu: Uta Koi*. Character listings and episode summaries for the series omit her entirely. Historical sources detailing her life do not reference any role in this adaptation. The AniSearch entry for Fujiwara no Teishi lacks descriptive content or anime-specific details, confirming no established portrayal in *Uta Koi*.