Trained to eliminate from childhood, siblings Bannon and Vree possess only known life as assassins in the Imperial Army. The military is usually both their mom and dad, their lives subject to the whims from the Crown.

When their newest target steals Bannon’s body for his own, Vree saves her brother by dragging his spirit directly into share hers. But two assassins in a single is one assassin way too many. To save lots of both their lives, they need to abandon the just life they’ve known, risking Imperial ire and feasible execution, to regain Bannon’s body. It is not until once they capture Gyhard, the body thief, that they realize they can’t push him to do anything while he keeps Bannon’s body hostage.

But Gyhard is willing to trade Bannon’s body for his or her assistance. All they have to do – while being hunted for desertion and dealing with an unfamiliar power able to Sing the useless out of the grave – is definitely betray the oaths they’ve lived by and help Gyhard protected the body of an Imperial Prince.