"Four people"

"Heh heh heh... four people..."

"Yes... the three from Kaga... Magatsu Taito... and finally... The hundred-man-killer".

Uh, that's FIVE people... oh, nevermind.

Shira kind of chuckles to himself. Only four (that is to say, five) more people killed and he's free of Mugai-ryu's obligation. He can do whatever he wants from that point. He reminisces that 'back in the day' four people would have been nothing. He'd almost enjoy taking on more people.

"Yes, that was before you lost your arms".

"Yeah... but I made a NEW WEAPON for my other arm".

Shira goes on to say that it's something that people shouldn't really use as a weapon, but he's doing it anyway. And he's not going to tell the jailer (us) what that new weapon is yet.

But he'll give us a demonstration...

"The male priest is still alive, barely, but the nun is dead." (Buddhist, that is)

"From now on, this is my new arm"