Okay, around 20 years ago a researcher realises he could make himself kind of immortal by using the correct techniques and knowledge. He needed a clone of himself with his own adjusted dna inside this clone. And also needed a brain transplantation afterwards. He could do the dna-thing himself, but he needed someone to help him with the clone. That's where the other professor jumps in, the one who finds this girl from the story. The other professor doesn't know about the altered dna or the test subjects, though, he thinks he only wants to clone a younger body.
Anyway, for short, he needed test subjects and he had to try three times before making a good subject. The last one, the girl, should have been a 'perfect' human in the eyes of the researcher, so he added a few failures to the girl. Some of them being memory loss, albinism (very sun sensitive) and other stuff like that. The final test would be to transplant a brain from a clone from the girl into the body of the girl from the story, be he died too soon. (sorry if it's complicated xD)
Now, for how the story will end, I'm not sure yet, so... But the story will follow the girl, who wants to find out what happened to her. She's known noone in her life except for the professor, so she loves him like a father. So, eh, I don't know yet what happens xD but there's enough material to make something nice, I think
Tell me what you think, lol, if you can think of some better motives and such, please tell me ;D