On a world far removed from Earth, there is a kingdom brimming with smiles. Fate thrusts idealistic Princess Yuki into a role for which her most endearing qualities are ill-matched. Her country faces danger as the Empire threatens the realm’s security. On the opposite side of the conflict, an imperial soldier known as Stella hides behind a facade. But a time may come where her mask cracks, costing her everything. Princess Yuki and Stella’s paths will cross, and the fate of nations will follow.