Sylvia van Hossen, a proud aristocratic daughter who wields a sword dashingly.The wish of this proud girl, who could be called a modern version of a ``princess knight,'' was to dedicate her life to the people and country she was supposed to protect...or should have been. After spending the night with her fiancé, Teppei Arima, whom her parents had decided on their own, Sylvia was confused by her own wavering heart.