Clarity's paladin order forbids her from entering the Azure District, the one location in her high tech city that refuses paladin rule and technology. When she receives an illicit invitation to violate the prohibition, spurred on by rumors of suffering in the district, she passes through the crumbling brick entryway into no-man's land. Within, she finds the residents lack not only the ocular implants and three dimensional computers she takes for granted, but also medicine to fight a disease infecting the children.
Clarity knows her order isn't perfect---after all, they stole her from her parents when she was a small child to raise her with their values---but she cannot believe they know what's going on in the Azure District. When she confronts the head of the order, he refuses to aid people who have rejected his help in the past, even the children. Unwilling to take no for an answer, Clarity enlists the help of the leader's son Cass and takes matters into her own hands.
Desperate both to cure the children and keep her place in the order that is her only home, Clarity engages in increasingly questionable behavior---deleting official records, lying to her friends, and manipulating people who can help her. As the nefarious nature of her actions tarnishes the purity of her cause, she must determine what it truly means to be a paladin, in both name and action.