A society where citizens are divided based on their skin tones. Noughts are the white citizens, most of them are laboring class and they are controlled by Crosses, who are the black citizens. Crosses ruled everything. Our main characters, Callum McGregor, a Nought and Persephone "Sephy" Hadley, a Cross were best friends since they were young and later on became lovers. There are so many things happened in their lives. Still their love story is forbidden. One rule on their society: Noughts & Crosses cannot mixed together. They must stick to their own kind or else, there will be consequences. 
 Noughts & Crosses isn't your typical young adult dystopian novel. The story is unique, powerful, realistic and beautifully written. I shed some tears towards the last part of this book.. MY GOODNESS. THAT DAMN ENDING!! I decided not to read the novella yet for some reasons. This book tackles about racism and injustice,. Their world is really harsh. There's bullying, violence, etc. I love Callum and Sephy because they have an unconditional love, they don't give a fucking damn about their racial tones even if they're judged by other people. 
 Sometimes, it happens in real life. Quite devastating, but that's reality. Remember, we cannot please all people, but they cannot control someone's feelings of who to love. 
 I highly recommend this series to everyone.