I Play Magic in the World of High Martial Arts

Does magic really exist in this world where martial arts reign supreme? "Some children." So the great sage of the black magician chose the boy as the successor of the black magician. "Devil summons!" "The devil descends thunder!" "The Curtain of the Black Mage!" "Hellfire!" "Heart of fear!" "The absolute domain of the dark devil!" … Come on kids! As the last black magician in the world of high martial arts, use your power to break the nothingness in front of you! Clear the name of the Dark Magician! Correct this tampered history!