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.

Kylie lives in a society where people are numbered according to their social status. Kylie is a Zero, the bottom of the social hierarchy. She is doomed to spend her life on the lower end until she meets Jared, a Five. Everyone knows it's forbidden for a Zero to have a relationship with anyone, even another Zero. So what happens when Kylie begins to fall for Jared?