Board Thread:Questions and Answers/@comment-118.211.8.204-20150302141811/@comment-27384850-20170324213733

The fact that he was not holding back and yet did not use a second sword. The fact that Sword Skills are pivotal for duels and the only advantage that using a second sword would provide in this regard has at most a 50% success rating. The fact that, even in real life, the proper and beneficial use of two swords for things like kendo is incredibly difficult and used almost never.