As mentioned above, nothing was known about Itosato, apart from the fact she was present when Kamo SERIZAWA was assassinated; her character in the story was all fictional.
上記のとおり芹沢鴨暗殺事件の際に八木家に居合わせた以外は糸里個人については何もわからず、作中の彼女のキャラクター設定はすべてフィクションである。