This is an April Fool's joke by Nitroplus. On 01.04.2011, an official website for Mahou Shoujo Sonico Magika, a parody of SoniComi (a game by Nitroplus), was opened with the announcement of it being a TV anime. On the same day, the opening video for the so called TV anime was released on YouTube by NitroPlusChannel. This opening is essentially the entire anime. The title is a clear reference to Mahou Shoujo Madoka Magika, a TV anime which screenplay was written by a Nitroplus staffer Urobuchi Gen, who also got credited for screenplay for this anime on the official page. No screenplay was ever written, of course.
SHSamuel H.
suggested the film. That grants legendary status. Bravo!