Tris Pedrad is about a girl who was born and raised in Dauntless with her twin Uriah and older brother Zeke.
Two years before her initiation is her brothers initiation. When she's at his initiation, something weird happens. A stiff joins. This is the first time this has ever happened, when she meets him later she notices he's not your average stiff.
She later notices that she has developed a crush on the stiff. When she minds out his name, Four, she falls in love, knowing that she will never be able to date him because of her brothers.
When Four becomes friends with her brother Zeke, she becomes friends with him too. There's many secrets both of them have to hide. Will they be stuck in the friend zone forever? Or will they become more?
All characters belong to Veronica Roth