Nidai Kitetsu

Counted among the twenty-one Great Grade swords, this katana ranks as the middle blade of the three Kitetsu weapons. Its smith was Kotetsu, an ancestor of Kouzuki Sukiyaki, and it stayed in Sukiyaki's keeping until Luffy borrowed it during the Wano Country Arc. As with all Kitetsu blades, it bears a reputation for cursing whoever holds it.

The sword is a katana with a gentle curve, a light purple edge, and a striking blue hamon patterned like flames. Its tsuba is gold and formed as a rounded cross pattee, while the grip carries purple wrapping. The matching sheath uses deep and pale purple striping with white wrapping at its middle, two gold clasps set close together, and a gold end cap, echoing the hilt's design. As a Great Grade weapon it sits among the world's finest blades, second only to Shusui among the Kitetsu swords and on a par with legends like Wado Ichimonji, Enma, and Ame no Habakiri for its sharpness and strength. In the anime Luffy, untrained as a swordsman, still sliced cleanly through several enemy blades with it. The Kitetsu curse promises a grim fate to each successive owner. Its hilt and scabbard mirror the styling of Sandai Kitetsu, since Sukiyaki later copied his ancestor's work.

Kotetsu created the blade, and Kouzuki Sukiyaki held it for years afterward. During the Wano Country Arc, Luffy carried it while taking Tama to a doctor, prompting an eager Zoro to keep asking for a closer look, a chance that kept slipping away. Forced to fight Basil Hawkins, Luffy tossed the scabbard aside to Zoro's dismay and simply threw a punch with the sword still in hand. After Kaidou defeated Luffy, the Beasts Pirates apparently seized the blade and held it at Udon. Once the prison fell, Kikunojo recovered it and returned it to Sukiyaki, at which point Zoro finally got confirmation that it was a genuine Famous Blade.