In a faraway kingdom of Silverland, Princess Sapphire was born. However she was no ordinary royal, born with both the blue heart of a boy and a pink heart of a girl, she was going to be known as being both head strong and caring.

But to protect her right to the throne, the King announced her to be a boy and so begins the adventures of Princess Knight Sapphire. Protecting her kingdom and the happiness of the people whilst thwarting the evil Duke Duralumon's schemes, Sapphire won't rest until peace is assured!