At the age of eighteen, everyone's blood changes colour. Whether it becomes blue, green or otherwise, the colour is either hereditary or a random, biological selection. However, when Pearl Damocles discovers that her blood is colourless - in a society where people are segregated by blood colour -, she travels to an institute for people like her with a handsome yet mysterious man named, Malik Ahmed. After months of training and planning - with a team of quirky, newfound friends and trained militants by her side - she decides begins to hatch a plan. One to bring everyone together, and abolish the inequality of the blood colours.

Allison Montgomery wasn't your average teenage girl. She liked punk rock bands and dressed in all black almost all the time. She already had a hard time fitting in at her school in Cleveland, Ohio, so she figured she would have an even harder time fitting in at her new school in Sydney, Australia. When she meets Luke Hemmings, the typical bad boy who could get any girl he wanted, her life will take a huge turn. But for better or worse?