Even now the young man was unable to see the person who was talking to him. He had used his Qi to try and scan the surrounding area but even then he could not find the location of the person talking. It was like the person didn't exist at all.
"Don't bother doing that, at your current level no matter how hard you try if I don't want you to find me then you'll never be able to find me. So stop bothering doing that and just answer my question, whose descendant are you?"
The young man hesitated for a bit, but in the end, he decided to answer the unknown person. Still, even though he decided to cooperate the young man didn't let down his guard.
Even if the other party truly was his Ancestor based on the numerous stories he has heard of the Strongest Mortal Soul, his ancestor will strike no matter if you're a friend or a family member, he would do so to test if you were worthy, or just because he was bored.