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 in the jungle, training to be a samurai with his father, Kenjuro. When they return 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! Armed with his new special move Lightning Slash, Yaiba and his allies launch their assault on Onimaru Castle! But standing in their way are Onimaru's dreaded Four Devil Kings--Yakitori the Anglerfish, Chameleon Bonaparte, Super Gorilla, and Tortoise Europa! After Yaiba battles through these foes, it's time for the showdown with Onimaru himself! When these two warriors unleash the power of the Wind God and the Thunder God through their swords, will either of them still be standing?