YAIBA is a Japanese manga series created by Gosho Aoyama that serialized from 1988 to 1993 in Weekly Shōnen Sunday. It was later adapted into an anime series entitled Kenyu Densetsu Yaiba (剣勇伝説YAIBA) that aired from April 9, 1993 to April 1, 1994. The manga was collected into 24 volumes originally and released three more times after that: the wide version (12 volumes), the paperback version (10 volumes), and re-release version (24 volumes).
In order to train his son, Yaiba Kurogane, to be a great samurai, Kenjuro Kurogane raises him in the African wilderness. But during training one day, they (along with their new pet tiger Kagetora) are caught in a box of pineapples about to be shipped to Japan. At the Tokyo airport, Kenjuro runs into his old kendo rival Raizo Mine and his daughter, Sayaka. Kenjuro leaves Yaiba with Raizo and Sayaka (despite their protestations) and heads off on a journey.
Meanwhile, Yaiba makes instant enemies with Sayaka's school's kendo star, Takeshi Onimaru. After losing in a duel to Yaiba, Onimaru begins training with his family's Fuujin-ken and becomes demonically possessed and starts to take over Japan. To combat this, Yaiba seeks out the Raijin-ken and is trained by the legendary samurai Musashi Miyamoto. Onimaru sends wave after wave of minions after Yaiba and his friends, leading to a final showdown at his flying castle.
- Yaiba in Detective Conan Wiki