Since I am a fan of the famous One Piece manga, the answer is self-evident. Monkey D. Luffy, our beloved hero, is not a master of the blade. However, over time in the series he has picked up a few swords. The sword that naturally springs to mind is The Kitetsu III, one of 21 O Wazamono grade blades and which happens to be a gift to him from Hitetsu Tenguyama of Wano Country. Yet it is all in vain as in comedy form pretend that he knows how to handle a weapon, leaving one with comprehensive enjoyment but nothing to think about seriously.