Synopsis from Goodreads

Fifteen-year-old Blaise Montgomery lives in the gritty outskirts of Washington, DC, where a stray bullet can steal a life on the way to school. Drugs and violence are the only ways to survive, so Blaise and her friends turn to gangs for safety, money, and love. When Blaise is invited to join Core 9, one of the most infamous crews, she jumps at the chance. Though her best guy friends, Rico and Satch, warn her about the danger, she agrees to be beaten for a minute straight as part of the gang's initiation ritual. Now Blaise is finally part of a crew. A family. But things get only more dangerous when she becomes a member of Core 9 and tensions with a rival gang heat up. Trek, the head of Core 9, asks Blaise to be his "lure," the sexy bait he'll use to track down enemy gang members and exact revenge. Rico and Satch tell her it's a death sentence, but Blaise can't resist the money and unparalleled power. As Trek puts Blaise in increasingly dangerous situations, she begins to see that there's more to lose than she ever realized-including Satch, the one person who has the power to get under her skin. With death lurking around every corner, should Blaise continue to follow the only path she's ever known, or cut and run?