The Crowns and Reigns are rivals.
A gang called the Crowns rule the east side.
An agency called the Reigns are made to destroy them. (or end the Crowns' "reign", get it?)
Brynn Kingslee has spent a third of her life protecting herself from her stepfather as fiercely as a twelve year old can.
Only to find, after his death, she has seven fiercely protective older brothers who didn't realise that not only would they be protecting her from their work, but also protecting her from her past, too.