Sandai Kitetsu is one of the three swords of Zoro, the swordsman of Monkey D. Luffy's team in the One Piece anime and manga series. This katana is known to be one of the most powerful cursed swords in the One Piece world, with a reputation for cutting through anything that gets in its way. The sword is characterized by its wavy blade and its black hilt with gold details.
Zoro acquired Sandai Kitetsu during his training on Kuraigana Island, where he found the sword after passing a skill test. Since then, this sword has become an integral part of Zoro's sword technique and has helped the character survive numerous battles in the series. The importance of Sandai Kitetsu in the One Piece series lies in his power and his connection to the history and evolution of Zoro's character.