After he explained everything, everyone finally understood.
The matter was not as simple as they had imagined. Now, with such significant changes, they were gradually realizing that the experiment he was conducting was likely a Disguise Technique.
"Where exactly did you get this from?"
"I can't reveal too much to you about that. You're telling me, this item is definitely used like this, right?"
"Absolutely, I can't help with other things, but I can guarantee you with confidence that this item is definitely used for that purpose and nothing else."
"Alright, I understand. You can go now."
"Old man, can you promise me one thing?"
"I know what you're going to say, you want those two things, right?"
"Yes, exactly. If I can get those two items, I can go back and study their components thoroughly because, for so many years, it seems nobody has really solved this tough problem."