KATANA, One Piece Wiki

For the type of sword, see Katana. KATANA is a song performed by Roronoa Zoro for the One Piece Nippon Judan! 47 Cruise CD. Like the other songs in the album, it references a location in Japan, this location being the Fukushima Prefecture.

Japanese sword mountings - Wikipedia

One Piece Wiki, Glaive, manticore, wikiwikijp, battle Axe, Warframe, axe, Sword, blade, wikia

ONE PIECE - Sword of Shiryu of the Rain - Meito Raiu Katana

Nidai Kitetsu, One Piece Wiki

Japanese sword - Wikipedia

Katana - Wikipedia

Kogatana, One Piece Wiki, mini yoru mihawk

Katana - Wikipedia

One Piece: All of Zoro's Named Katanas Explained