that will probably be the new title.
here is the long-awaited summary
Kyos is just a highschool girl. She lives a simple and happy life. She thinks of herself as a normal girl, but there are two significant points that she can't miss -- she only has memories of the past year in her life, and she has no parents. One day, her routinely life is disrupted by the arrival of a new student at her school, then by strangers coming to their door. Kyos is about to find that she is not she she thinks she is, and she will be forced to realize the fact, and to carry a burden much too heavy.
le enjoy!