I really feel like to be a duel you have to meet at an agreed upon time later. That’s the key right? Weapons don’t matter, cause doesn’t matter, it’s the fact that you agree to meet at a time and then you both show up and then fight. That’s the difference between a dual and a fight in my book. Just saying hey let’s fight doesn’t count. That’s just a brawl. For this Japanese Court to say otherwise is just plain dishonorable.