Mom leaves daughter because she is about to be confined to a wheelchair and doesnt want her daughter to think badly of her.. she helps create angellic layer for her daughter (really for herself to give herself the ability to walk again), and etc. Lots of fight scenes on the angellic layer between dolls (its hard to explain). I enjoyed this series, and it brought tears to my eyes, I even bought the manga for it. But I don't think it would appeal to most. It is MOSTLY geared at younger children... you can do anything if you put your mind to it kind of message.