After long years in the line of duty as a 'Soul Taker', Kate is worn out.

When she gets a new job offer from the 'Powers Above', she accepts her new job as a Guardian gratefully without knowing that her teacher is one of the most powerful beings in existence, the Archangel Raphael.

Along with Raphael, she takes on her new task and the connection between them grows.

Raphael helps, protects and supports Kate, but suddenly, she becomes a target for the Demons of Hell.

Raphael realizes that Kate means more to him than he expected, which causes him to fight furiously against danger. If he fails, Kate's future will contain eternal darkness, evil, and torture.