The beginning of the story is part mystery and part adventure, focusing on a group of half a dozen white haired kids making an appearance through out centuries seemingly without aging and the other time focusing on a kid called Thoma who meets some anti-social girl called Helga and a energetic boy called Chitto. I admit the story was a bit underwhelming at first but once the story unfolds in later episode, you'll be hooked straight away, it turns into something quite epic and unique, there's so many twist and turns and you'd just watch episode after episode and without even noticing it's already over.
The art style can be a bit of a turn off for some people, they might even think this is a kids show but fear not this is quite mature even if the first few episodes are light-hearted they're nothing compared to what happens next.
Anyway, as you get used to the art, it becomes more apparent that it's done quite well, lots of attractive looking backgrounds and pretty solid animations.
The background music can really manipulate the emotions of certain scenes, they really help make pivotal moments in the story have more impact. The OP fit the series perfectly too bad I had to skip on occasion since I just really wanted to get on with the story, While the ED is sang by ORIGA the same singer who lent her voice for the majority of the GITS soundtrack.
How they made the connections with each character was great, most of the characters had a certain connection to the main plot, the importance of characters become unpredictable that you'd be shocked when the story finally reveals what their purpose are. Honestly every character was interesting and it was nice to see that they all had a part to play they weren't just some random people thrown in together to make episodes last longer.
A lot of people would probably just ignore it after looking at the front picture alone, which is too bad because it's a pretty damn good show with a unique and interesting plot along with a great cast and a solid OST, you might not like it as much as I did but I guarantee it's definitely worth watching, it's only real flaw is how lame the name is.