Arc of a Scythe Boxed Set: (Arc of a Scythe)

The Arc of a Scythe series takes place in a future where death has been virtually eliminated thanks to advanced technology. The population is controlled by Scythes, individuals who are tasked with 'gleaning' others to maintain the balance. The story follows two teenagers, Citra and Rowan, who are chosen to apprentice to a Scythe and learn the art of taking life, ultimately forcing them to confront the morality behind their society's foundational principles.