After hearing his response, I find myself increasingly compelled to press him for an explanation regarding his awareness of how I succeeded in returning to the past.
"Old man, I'm perplexed about how you came by that particular piece of information. I must insist on understanding the source of your knowledge. As far as I'm aware, only Nobuhiko and I are privy to the fact that I've returned."
"Why, though? What prompts me to disclose such information to you? Do you have any intention of rewarding me for divulging the details of how I came to know? I highly doubt it. Therefore, there seems to be no incentive for me to provide you with any answer that would satisfy your curiosity. Moreover, what purpose would this information serve once you possess it? Nothing, I presume."
