Nanami Madobe is indeed the unofficial, but later recognized as official, mascot for windows 7 in japan. while initially believed to be created by microsoft, she was actually designed by artist wakaba and developed by windows 7 mania (owned by techno alliance corp). nanami was part of a promotional package that included images and audio, voiced by mizuki nana, and was released with the first 7777 copies of windows 7 ultimate in japan.