Yaiba: Samurai Legend manga volume 2 features story and art by Gosho Aoyama.

Yaiba, accompanied by the 400-year-old Musashi Miyamoto, and his friends Sayaka, Kagetora, and Shonosuke, embarks on a training journey so he can defeat Onimaru. Onimaru, now a demon, has seized control of Japan and turned the parliament building into Onimaru Castle! His sights are set on Raijinken - Yaiba's Thunder God Sword - and he'll stop at nothing to take it!