Watch Kyoukai no Kanata.
This show is probably one of the best show's I've ever seen.
The art is beautiful.
The music is beautiful.
The story is beautiful.
The show is almost perfect.
The first few episodes are slowly paced and can feel like a drag to watch. The ending left me with very mixed feelings. Some of the characters felt like they served no purpose.
It's those things that keep this show from being perfect.
That in mind, they don't stop the show from being a masterpiece.