Jude "Kayori" Prower, a dark mage, lived in a hidden town away from the world. No one can get in nor get out. She lived a laughing-stock, a burden, a weakling, all because of the red crystal on her forehead. Another thing is her family, ashamed of her existence. But she escaped from that town, chasing away her sorrow, living with the others with the crystal. Betraying her village, showing-off who's boss. Nobody deserved it but she's the strong one now, and nobody denies it.