The Black Mountain old demon stood dumbfounded on the spot, unable to regain his senses for a long time, his eyes wide with disbelief.
Hei Feng, that was his personal bodyguard, the most capable subordinate by his side.
Hei Feng was half a step into the realm of immortals, with combat power comparable to the Nascent Soul Stage—indeed a renowned figure within Black Mountain City.
But this young man in green, with just one punch, had instantly killed Hei Feng; it was horrifying, terrifying!
Could this young man in green truly possess some peculiar secret technique, as the rumors suggested? Otherwise, how could he have such heaven-defying strength!
"Black Mountain old demon, I advise you better release me. Otherwise, I won't be courteous. I can assure you, if I weren't in this ancient cave, I would have slain your people long ago."
Lin Yifei arrived at the cave entrance and said indifferently to the Black Mountain old demon inside, his tone calm and unwavering.
