The soundtrack is exceptionally good (esp. Ooshima Michiru - Servante du Feu Sora no woto OST) and the plot is fun. It reminds me of countless other Anime favorites. Noel = nemu and haruhi suzumiya; Rio = rakka/Reiki; Felicia = Alicia (ARIA).

wingless recommended due to "Beautiful soundtrack"

Archaeon's review: "The plot, which is more on the episodic side for the most part, is far more reminiscent of Haibane Renmei, and although there are a few points that deserved more focus, the story is actually very well crafted. The pacing is extremely good throughout the series, and the seemingly slow progression promotes a feeling of relaxation rather than boredom in a manner very similar to Aria." Two incredibly strong points for my interest in anime.