This book describes the Saint Sword that defeated the Demon Dragon long ago and the process by which the blacksmith Rodya forged it.
Rodya worked hard to improve his forging skills.
In his spare time, Rodya searched Saphael for precious minerals. Once, he went to Storm Crevice in the south of the Ancient Polar Ruins,
There, he discovered that the spiders were covered in Storm Ice Crystals and Magic Wind Crystals, minerals he'd never seen before.
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Rodya very carefully gathered the minerals until had more than he could carry with him.
He carried his heavy load back to his workshop. As he strained to get all his crystals through the door, his neighbors peered over and examined them. They were curious about how he obtained them.
Rodya explained the situation, and the minerals came to be known as Ice Crystal Spiders and Magic Crystal Spiders.