The book is a dystopia and it will your mind blow away.
The story is written in first person manner, and the main character is Cassia. Cassia is 17 years old and grew up in a future society. In the society, you get matched with a partner who is compatible and have alike attributes.
When it's time for Cassia to get matched, she gets matched with her beat friend. This is really rare and she's is very happy about it! But when she gets the information about her match, there is a glitch in the system and there is another guy in the information.
The society is forcing the inhabitants to be in love with their match, and here is where all the drama begins. Cassia is not in love with here match Xander. Instead she have feelings for the guy who was on the glitch, Ky.
There is also a rule in the society that says if you are turn 80 yeas old are you not allowed to live anymore, and Cassias grandpa is 79 and is soon going to die. The grandpa also likes to write poems and there is a problem with that. The society have a limit for everything. Which means that only 100 poems, 100 movies and so on are allowed. And the grandpa is breaking the rules and gives his poems to Cassia who is hiding them. But one day is Cassia very afraid of being caught so she burns them.
Cassia finds this guy, Ky very interesting. So she spends a lot of time with him. The two of them read together among other things. The catch here is that Cassia has fallen in love with Ky. But the glitch in the system is getting fixed, so that Cassia will be matched with Xander again. Ky is going to be forced to live alone for the rest of his life.
Cassia works with sorting things, and she's great at it. So great that she gets promoted and gets offered to sort people! The job is to sort the top half of the sorters from the bottom half, based on efficiency. Although her new love, Ky, is right in the middle of the bunch she puts him in the top half. The top half will get a promotion to a better job and a higher place in the society. But what actually happens is that the top half, including Ky, is forced to go to war.
Both Cassia and Xander make it their mission to rescue Ky and the others from their brutal faith. What happens next is for you to find out, because in don't want to spoil the whole thing