A cute, lighthearted Anime series about a schoolteacher who discovers that she's really an ancient android built for the purpose of defeating supreme evil. Her power is that of transformation into anything she feels like, though she is highly-partial to very sex-oriented forms, usually involving lots of bondage. It is apparently based on a much older Anime series of the same name, but I don't know what the old one's about. Probably something similar.
It has an incredibly catchy dance/disco themesong, which the themesong to Pokémon sounds suspiciously similar to.