Chapter 520: The Xu Family's Demon King

Upon hearing this voice, Jonathan Chu and Su Zi were both stunned.
They were all doctors, so they could naturally tell that the owner of this voice was still in the voice changing period and was no more than twelve or thirteen years old.
The two looked up and saw a teenager getting out of the car and walking quickly towards them, escorted by a group of bodyguards.
The child was about twelve or thirteen years old, wearing a school uniform and had a few pimples on his face.
But this...