The Black Sword of the End

There are two kinds of magicians in the world One is an ordinary magician who relies on his own magic power to cast spells. The second is the cliff-like strong ones, they are the book holders. There is a dragon lurking in the distance. "I" was originally a magical insulator, abandoned by the world. Picked up a black magic book outside the sewer. I will eventually break the world system. Later known as "Dragon Slayer" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.