If you're pulling off something like a sneak attack,

Then it seems you aren't interested in talking anymore.

Even if I didn't have an immortal body, you wouldn't be able to kill me.

Then again, if you're that weak-kneed, you don't have many other options besides talking.

Here's an idea... If you can manage to hit me with just a single stroke of a blade,

Then I'll apologize or do whatever it is you want me to.

......Judging from the way you look,

It's likely you don't even care about that anymore, I guess.