Don't Dragon the Prince! Book One

Everyone faces troubles in life. I was unlucky three times. Firstly, being born the second of two twins in a family where only one child survives until the age of twenty. Secondly, encountering one unbearable, incredibly self-confident wizard, because of whom my plans went to ruins. Thirdly, to un-dragon the Roman prince – my sister's fiancé, while not even being acquainted with him! And I could have managed if it weren't for one "but": it seems, my arrogant wizard, who makes my heart beat faster, is that very prince…