It's only a flesh wound!
Tatsuya doesn't seem so determined at being a knight in shining armor this time around. He pleads with Arisa, asking her to not stab him. Obviously, that doesn't work. However, Tatsuya survives. But what's Arisa's excuse to not be stabbed? "I could never wear a swimsuit again!" Well, it is a reason, but I'm not even sure if one would be able to walk after being stabbed in the leg. Tatsuya doesn't really care though. A sword through her leg! A cry of pain. At this point, Arisa doesn't hesitate to stab Tatsuya in the body again, but he survives yet again. Tatsuya chooses Arisa's second leg and it goes through. No swimsuit modeling in Arisa's future it seems. Interestingly, the narrator (pretty much Kazuya thoughts) isn't being very impartial. Calling Arisa a "bitch" and "annoying" you can tell what his opinion on these actions are.
But things are looking up for them! There are only three swords left and eight holes, six of which have metal plate protectors. I'm sure you guys could do the math but I did it for you guys. 75% (6/8) chance of hitting a metal plate on the 3rd-to-last sword, 71.4% (5/7) chance on the second-to-last sword, and 66% (4/6) on the last sword. Together the chance that all three swords hit metal plates is...35.3%. It's surprisingly low, isn't it? A two-third chance that one of them will be stabbed by the end of this, and that one stab...is probably fatal.
So who's gonna carry that weight?