A net character, outside the core circle of [[OS-tan|OS-tans]].

Her history is as follows: The Windows logo turned on the side looks a lot like the very common Japanese family name "Yamada" written vertically:

山
田

She was an early suggestion for a design for Windows 98, but never caught on because she was too plain. Nowadays she's mostly given up on being an OS and lives with [[we-tan|WE-tan]] (who still wants to be one), [[Astaroth (Shinrabanshou)|Astaroth]], and [[Spider-man|Spidey]]. She works as an [[office_lady|OL]], and has no distinguishing characteristics whatsoever. She's from Niigata, the most boring Japanese perfecture. She likes staying up late and watching TV.

She works at the same office as [[we-tan|WE-tan/Taeko-san]], [[2k-kun|2k-kun]], [[eigyouseki|Eigyouseki]] (the businessman mutation of the super-deformed [[suiseiseki|Suiseiseki]]), and a grown-up [[hinaichigo|Hina Ichigo]] who's name I don't really know. Their boss is [[darth_vader|Darth Vader]], who writes his name "米田さん", or "Beida-san".

(source: http://www.wakachan.org/os/res/17271.html)
yamada-san