The manner in which Vandread expressed himself made it abundantly clear that he intended to be taken seriously. He was determined to have whoever was behind the mysterious voice become his servant. And considering that this would be his last opportunity to make a guess, he would need to identify the unknown voice correctly.
"I believe you appear to have gained an excessive amount of self-assurance. Have you given it much thought? How confident are you that you'll get it right? I wonder.' Despite this, the mysterious voice tested him once more.
"Even if I had to wait for eternity, I would think carefully until I could discover who the hell in this world you are!"