But the Healing Soul Masters of the Sun Moon Empire simply lacked the ability.
Even the strongest healing-type Titled Douluo in the Star Luo Empire would never heal a pillar of an enemy nation. Even if they were willing, the Sun Moon Empire would not trust them...
Moreover, the years had taken their toll. A Titled Douluo could ordinarily live for around a hundred and fifty years.
Yet because of his hidden injury, his hair had already turned gray when he was only in his seventies.
He had little time left.
"Can this hidden injury be healed?" Xu Cheng quietly asked Tian Meng.
"...Spiritual injuries are generally the hardest kind to heal, especially those sustained in childhood, which become deeply entrenched. Your teacher really wasn't wrong. Even a Titled Douluo-level Healing Soul Master would find it extremely difficult to cure completely."
Tian Meng pondered.
Then he shook his head helplessly.
"A Cheng, I can't help you with this."
Xu Cheng nodded slightly.
But he had already made up his mind.
Gold of life.
On the Douluo Continent, this substance was the most potent concentration of life force.
A single drop equaled several months' worth of life force accumulated by the entire Star Dou Great Forest, which showed just how powerful it was.
However, when the time came, Elder Yi would still need to act.
Xu Cheng silently worked out his plans.
"All right, A Cheng. Being able to take in such an outstanding final disciple during the last years of my life has already left me without regrets. As for these research findings, they're my final gift to you. In the future..."
"Teacher, you won't die."
Xu Cheng's voice was calm, but carried a thread of resolve.
At the auction during the All-Continent Soul Master Tournament a few months later,