Bottle Fairies (2003) IMDb
Four tiny fairies spend a year in the real world, learning about it to become human. The seasons pass as they use their magic and imagination to simulate important growing-up events such as graduation, marriage and war.
Children’s comedy. A lot of the humour and morality has an adult but non-sexual twist. There is a Satanic sacrifice motif in the first episode, and another episode is devoted to embracing death.
References here: Strawberry Marshmallow (2005).