one of my favourite comic books in the 90s. 
Yaiba is Gosho Aoyama (the author of Detective Connan)'s comic book
debut.
The light-hearted manga is about a young adventuring samurai named
Yaiba Kurogane. Yaiba lives with his father, Kenjurou, in the
forest. One day, while on a hunting trip, Yaiba and his father were
attacked by gorillas and hid inside a box to escape, but they
didn't know that the box was going to be transported into the
city.
In the city, Yaiba acquire a powerful thunder sword and began his
adventures fighting off evil characters, including his arch nemesis
Takeshi, a demonic looking high-school student who wield the wind
sword.
