[ But in the end... no one wants a villain to come to a new world and live merrily with everyone, abandoning their sins and their actions. No one wants that sort of thing for the villain. Absolutely no one. ]

This teacher is touched that you thought so much about me and worried so much about my own happiness and my past mistakes. But it is all right. It is all right that I did not have such a sword. [ An item that's definitely meant to be in the hands of the protagonist! ] Such a sword cannot change what has already happened, right? And, such a sword may not have been any use in that situation, too.

[ Right. ] I failed my disciple and I will not erase what I have done.