After hearing the story of the first encounter between Phantom and her father, Elle couldn't help herself from laughing out loud. She just felt happy that her father and her foster father were not that mortal enemies, to begin with.
It seemed that their lives were already entangled to each other by fate. Her father saved Phantom while Phantom saved Elle.
Meanwhile, Phantom continued to tell her more when Elle stopped laughing.
"Your father was the one who removed my mask. He saw my face during our second encounter. Because of that, he started to investigate my real identity. Your father was the kind of person who wanted to know more about the culprit's background so that he could understand the person."