The first full-length adventure from Gosho Aoyama, the legendary creator of Case Closed ! Yaiba Kurogane is an energetic young swordsman who's grown up training to be a samurai in the jungle with his father, Kenjuro. When the pair returns to Japan, chaos seems to follow wherever Yaiba goes! Destined to be a legendary hero, Yaiba must learn to be a true samurai and save the world! Upon enrolling in high school, Yaiba quickly crosses swords with his rival, Onimaru. When Onimaru is transformed into a demon by the cursed power of the Wind God's Sword, Yaiba embarks on a quest to Mount Tengu to find his own enchanted weapon. However, Onimaru is determined to conquer Japan and sends assassins to eliminate Yaiba and his companions.