After the death of the great emperor Orrian, his only son comes to the throne, who inherits not only the country, but also the bodyguard. Carrian does not need such an addition to the crown, but he does not risk violating his father's will. Maru also does not like this decision, but the owner's order for him is above his own preferences. For two enemies, such a neighborhood is the worst thing you can imagine. A shadow that does not want to protect the new emperor. An emperor who hates his shadow... it would seem that these two have nothing in common and cannot. But life puts everything in its place.