I Use the Fire Stick to Cast Non-Singing Fire Magic

(Tag of this book: No abuse of the master, no cuckold fetish.) Ryan traveled to a retro medieval magical world. In the mine, the supervisor insulted him that he would be a slave for life, but he dug out the start-up capital by relying on his appraisal ability, turning what others considered waste into treasure. "Inferior Magic Crystal (Gray Quality)" "Introduction: Contains a small amount of magic power, but it is best not to use it indiscriminately, be careful of explosion. " Explode? What he wants is an explosion! While the warrior was still wielding his sword, Ryan had already made a special magic device in the workshop to perform non-singing fire magic. He learned the fireball technique in the mage tower, and Ryan used alchemy to improve it into pyroblast, doubling its power. Every time his alchemy workshop modified a magic weapon, the mages would frown one more time. At the end... The mages asked out of curiosity. "Why do you have a magic called 'World Peace'?" In this regard, Ryan said he had no comment, and he could not show his trump card.