The kana use the French pronunciation of "invincible".

Ah? So this is what you're curious about? This is the Blade of Hisou. The one who wields it is pretty much the strongest.

What? You think you want this, do you? Fine, if you can beat me! Well, that's what I say! Hya-ha! But that's asking the impossible!

.... So, how'd it go?