 If you liked
Natsuyuki Rendezvous
|
 ...then you might like
Flip Flappers
|
Both of them feature parallel fairy-tale settings that have some connection to the real world.
Beyond that, the themes/moods are pretty different.
Natsuyuki Randevous is a romantic drama that deals with death and adult life.
Flip Flappers (as this is being written, there are 8 episodes) has been a cheerful adventure with some mysteries lingering in the background. The main characters are all in school still, and working with organizations on the side.