The show originally aired from October to December 2003 on UHF syndication in Japan, and each episode has a run time of only 12 minutes.
The fairies learn about Japanese culture and traditions with each episode taking place in a different month.
The Bottle Fairies, who have come from another world, are attempting to learn many things about the world so they can gain knowledge and turn into humans - a feat they finally achieve in episode 12, set in the twelfth month, thus making the series span a whole year.
This extra episode makes Bottle Fairy the typical length of a small anime series.
It features image songs, the OP and the EDs, and instrumental music for the entire series.