This is Hsieh Lien-fang, more commonly known as Renhō, a biracial (Taiwanese and Japanese) politician who at the time this was taken in 2004 was campaigning for her successful first run as a member of the House of Councillors (Upper House of the National Diet). She later became head of Japan's Democratic Party from 2016 to 2017 and gained notoriety when it was revealed that she had never given up her Taiwanese citizenship. (Japan requires dual citizens to choose a single citizenship when they turn 20 years old.) She subsequently did so.
Incidentally, only the right half of this view of the area in front of Yurakucho station in Tokyo still exists, and just barely at that. That flip phone the photo taker is using, so ubiquitous in those pre-smartphone days, still can be seen occasionally in Japan (my father-in-law got his first smartphone just two months ago), where they are called somewhat derisively ガラケー (gara-kei), which has an interesting etymology. Back in the day, those phones acquired a wide host of features, many of which were not seen in phones outside Japan. It is seen as an example of Galapagos syndrome, "a term of Japanese origin used in business studies to refer to an isolated development branch of a globally available product" (Wikipedia). Abbreviated forms are common in everyday Japanese, so Galapagos became "gala" (gara in Japanese which has no "l) and kei is the first half of the word for mobile phones, keitai (携帯).