Talk:Shinyaku Toaru Majutsu no Index Light Novel Volume 09/@comment-187.41.164.8-20131216173229/@comment-5230978-20131217011915

I ask you, Touma would immobile seeing Rensa die even if the only way to save her was to kill Yakumi? That's quite an absurd premise. Touma doesn't have only IB and the precognition. He is smart and able to use object and the surrounding to his convenience, so even a situation with apparently a single way to save one life could become a situation with multiple ways. For example, considering that it would be a desperate situation and desperate times call for desperate measures, he could rip/cut off his arm in some way and try to overcome the IT power (after all he already did it in the past) and use it to help Rensa and Yakumi (obviously it'd be a huge gamble, but a possibility of success would still exist), or even sacrifice his life if it could help.

If Touma could only kill Yakumi (or someone else) to save someone, he, the person he want to save, and the person he have to kill to save the other should be in a void place, an environment-less place with zero objects, he should have restrictions (physical or supernatural) that would prevent him to anything aside survive and kill to save (unabling even an indipendent action of IT, or of IB if it has a will, or a use of them by Touma).

If THIS is the premise for your question, then you are asking an impossible answer, at least not a definite one. In such a situation, Touma could maybe kill to save, but before that he would think and try any possible way to not sacrifice anyone (though obviously the premise would not allow him to success), and he would not kill with a calm heart, he will suffer and a big scar will remain on him. Anyway, despite the premise, IB an IT are two big unknowns, so they could even overcome such premise, if not not allowing it to be in the very first place. The premise is absurd, but there could be even more absurd things in this series. To simply put I don't have enough informations to give a clear answer to your question.

I read that part, and the way she found was the "suicide", but real issue was that Touma risked one's life, and was not in a moment of anger, he was aware of what was doing, but if Rensa had failed, he would have killed Yakumi, and as stated in vol 4, he is not a professional that can get rid of the guilt for killing someone using excuses like "work" or "orders", he always an idealist-realist (lol) and even then he moved aware of what could happen.

As said before, Touma really trusted Rensa and was almost sure of her success, despite he didn't expected such a counter-productive method by her. Oh and to be more precise, if Rensa had failed Touma would not have killed anyone because Yakumi would have dead, and if she would not Touma wouldn't have killed the person Rensa was willing to throw her life for. I already said that Touma was willing to put a life at risk to save both Rensa and Yakumi. What I was contesting was that he was not willing to kill. I simply specified the extent of Touma's change, not denied it, and I have the feeling this new volume will bring an even more deep development, probably a negative/dark one.