Awakened by Magic

Four kings, one girl, and a magical destiny that binds them.  Kyann doesn't believe in stories of the four kings from Charnrosa's golden age. But when her sister is abducted by the cruel Emperor, they are the only people who can help her undertake a rescue.  Kyann will accept all the help she can get. The kings don't really mean it when they say she's the guardian destined to bring peace to Charnrosa - do they?