The story starts common and ok, but it starts spinning around, until it is a whole new story. And A WELL DONE one.
The character development you will find, in many of the characters. There are some questions that don't get answered BUT it left subtle hints towards that.
Overall, this is a very good anime, and a very good story even for those who aren't experienced in anime. Just don't bother with the english dub, is horrible. There is only one flaw in the narrative reaching the end, but I think that's because they didn't want to set on screen another loop, so they shortened like that.
