Gray and Blue Sword Song

Magic is the reward for humans after they betray the flying dragon. But now, as I use magic, every time I cast a spell, I die a little bit. My name is Cass, a cursed magic knight. In order to survive, I must cross the border and go to the ruins where flying dragons and ancient dragons are buried. On the way, I will encounter a thief girl who is played by the powerful, a cold-blooded official addicted to potions, a dilapidated city, a forgotten faith, and a dragon's echo that is about to sweep the world. This is a journey of curse, survival and betrayal. It's also a game between people's hearts that is colder than magic. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.