Slayer's Quest

Dragons have invaded the kingdom of Magnolia causing trouble! New kingdoms have sent their princes to vanquish the dragons. Will our hero Natsu Dragneel, the fire dragon slayer, accomplish his mission? Or will Lucy the Dragon Princess win? There will be promising romance. NaLu? LaLu? GrLu? StLu, RoLu? GaLu? There will be other pairing! Might get lemony in the end? No one knows