Ho- jin had witnessed the entire story of Amelié and Zacharie, from the very beginning, according to him.
He was aware of the role Amelié had played in his life… he was even sure about the fact that he was the first one to know that they were all existing in the same plane… in the same timeline.
And he was completely sure that he had been waiting for Nitya to come to them for the longest time, as he had been waiting for her even when she had not started getting the dreams, and wasn't aware of their existence.
And the same was true for Ji- hun. He was sure that his older brother might have seen some tidbits about her in his dreams, or in the form of her glimpses, whenever there was a cold breeze in his life… whenever he had felt overwhelmed by his life.