If Lin Feng wanted to improve, he had to simultaneously improve 90% of the Myriad Dao. Fortunately, the Azure Thearch sent him back in time. Otherwise, there wouldn't have been enough time for such improvement at that moment.
Lin Feng's limit determined the limit of the Longevity World. He was the ceiling of the Longevity World's combat power. So, when Zhang Tao and the others reincarnated, they could only reach a maximum of the mid-stage of the divine level upon their return.
Considering the current development of the Divine Realm and the speed of his own improvement, Lin Feng didn't know how long it would take to reach the level of a god. In that case, wouldn't Zhang Tao and the others be trapped in the cycle of reincarnation due to lifespan issues?
"Boss, it's okay if we can't improve. After all, we're all in the Longevity World. Besides, isn't Boss the master of all Dao? AAs long as you preserve our memories, it's good enough." Erlong chuckled.