Welcome the Main Characters

Michelle Hills, an Australian 16 year old finds herself hiding in the back streets of Sydney as she unsolves something extremely rare about her DNA.
She is soon wanted for laboratory testing and ends up on the top of many trained assassin's hitlists.
At first, Michelle woke up with extreme back pain around the lower part of her shoulder blades and believed it was just regular growing pains or muscle pains, but many days passed and only by then did she realised the two large gashes in her back.
However, is she the only creature out there?