Yaiba

Kurogane Yaiba is a boy who want to become a great samurai, and has been training hard with his father in the forest. One day, he sent to Japan where he has to deal with a whole new civilized reality, meeting the Mine family, fight the evil Onimaru, meeting the legendary swordman Miyamoto Musashi, having a lot of dangerous adventures and becoming strong. This anime also created by Gosho Aoyama, the creator of Detective Conan and it has 52 episodes. This is not only has action but comedy as well and I recommend this for teens to watch.