Stylish, but nothing new
First off, I have to give you points for style. The animation is pretty sharp and the 3-D effects, while they don't mesh too well with the 2-D characters, are still very nicely done. The music also fit the tone of the animation, and the voice acting was pretty good.
The problem is, the characters look very generic. If you're going to do anime, you have to put a twist on the character designs. Otherwise your characters will just blend in with everything else out there.
As for the plot, it's nothing new. The "search for one's own identity / past" has been done many, many times before. And while your intro gets the point of the series across, it's goes on a bit too long and is excessively wordy. Sometimes it's better to keep things short and simple.
Still, it's got style, and I look forward to the next installments.