"Tempering the marrow requires tempering all the bones in your body to ninety percent completion, including your skull, of course.
"Once you reach that point, your Vital Blood will naturally penetrate your marrow and begin tempering it. When that process is complete, your bones will undergo a qualitative transformation into golden bones. At that point, your body will have no remaining weaknesses. Your bones and flesh will absorb energy constantly, keeping your Vital Blood at its peak forever. So, essentially, only Rank Eight martial artists truly have unlimited Vital Blood. Rank Seven martial artists can manage it too, but they rely on their mental power to capture energy particles.
"So you could basically say that all grandmasters have unlimited Vital Blood," Lü Fengrou continued.
Meanwhile, Fang Ping looked utterly ashen. He had met none of those conditions. Didn't that mean he was headed straight for an operating table?
"Do you know Wang Jinyang from Southern Martial University's other nickname?" Lü Fengrou continued.
"Huh? What is it?"
Fang Ping didn't understand what Lü Fengrou meant, but he knew she was giving him a hint, trying to help him, so he kept listening.
"Half a grandmaster, or a grandmaster-in-waiting. That's not an empty title. It's a fact.
"Wang Jinyang has jade marrow, which essentially gives him unlimited Vital Blood. That's why he's called half a grandmaster. You're on good terms with him, and you both came from Yang City. You could ask him whether people from Yang City have that sort of innate gift."
Fang Ping's heart jolted. "Teacher, you mean—"
"Don't ask me. I don't know. Perhaps you have it too?"
Lü Fengrou said coolly, "Whether you do or not, as of this moment, you were born with jade marrow!
"And testing for it doesn't involve digging into your bones or