During a stretch of history after Meng Qi fled into the Nine Netherworlds.
At that point, Meng Chuan was still in the Lifetime World. He had just come from the Demon Race's territory.
He had gone to the Monster Race's territory because Meng Chuan had sought out the Great Sage Equal to Heaven and asked him to look after Jiang Zhiwei and Meng Qi's other friends who remained in the Real World.
After leaving Demon Race territory, Meng Chuan encountered the True Martial Emperor beside a river.
The True Martial Emperor had been waiting for him. To repay Meng Chuan for saving his life and guiding him on the Dao, he handed over the complete Heaven-Severing technique he had collected.
That complete Heaven-Severing technique would prove immensely helpful when Meng Chuan later traveled to the Sacred Ruins Era.
It settled part of the karma between Meng Chuan and the True Martial Emperor.
Though the way the True Martial Emperor had obtained the complete Heaven-Severing technique was rather strange.
Even as the Dao Venerable's Attendant, he should not, in theory, have been able to find the complete technique.
An Attendant was not an Heir who had inherited everything the Dao Venerable had to teach.
Just ask Golden Horn and Silver Horn whether they knew every supreme art of the Virtuous Heavenly Venerable.
This time, after receiving the complete Heaven-Severing technique from the True Martial Emperor and exchanging a few more words, Meng Chuan did not leave immediately.
Instead, he smiled and said one more thing to the True Martial Emperor.
"An unprecedented opportunity is about to arrive. If you're ready, my friend, be sure to seize it."
Puzzled, True Martial asked, "What do you mean, my friend?"
Meng Chuan smiled. "You'll understand someday."
The True Martial Emperor was not the Virtuous