Means

"Just who on earth are you?!"

The Mountain Demon, a husk of his former self, lay sprawled on the blood-soaked earth as he uttered with desperation. His pale face, betrayed the utter defeat that gripped him. He knew escape was impossible, his fate sealed by the masked figure standing before him. His breaths, ragged and shallow, broke the tense silence.

"Someone who can end you," the Ghost Faced Masked Man replied, his voice a low, steady rumble that held the weight of finality. He tilted his head, his masked gaze shifting to Yue'er, who remained nestled in his arm. "Little one, how would you have him meet his end?"