Y'zaks spoke about his past, but maybe because things happened too long ago, his memory seemed a little messed up. Nonetheless, he could still remember the strange old man's reaction when the demon guards captured him.
"He wasn't afraid of me, not even when I stood before him in my true form." The incredible feeling still lingered in his mind. "His robe was ignited by the flames on my body, but the old man just put the fire out with his bare hands. He then demanded for me to let him go so that he could continue his experiments—I've never seen anyone like him and it was interesting. Hence, I gave him two choices.