One marvelous thought and idea after another continually surfaced.
The martial arts in his idle slots began soaring at a rate more than a hundred times faster.
And as an immortal pill, both its effects and duration far surpassed those of Heaven-reaching Spiritual Marrow, enough to sustain Chen Fan in this state of extreme-speed operation for quite a long time.
After taking the immortal pill, Chen Fan immediately took the Chronolight Core and entered the cultivation secret realm.
The immortal pill's efficacy was truly terrifying.
It continued for several decades without coming to an end.
And over these several decades of cultivation, Lin Lei's improvement was even more terrifying than during the thousands of years he had spent in seclusion before.
The two immortal-level sword arts he had only recently obtained had long since idled to the limit his fifth-level Chang Sheng Sword Dao could reach.
Even though these two sword arts were not Sacred Hall sword arts, and the Sky Sword Secret Realm could not assist Chen Fan's cultivation.
Thus, he put more of his energy into cultivating his other Great Daos, and gained quite a bit from all of them.
His Lightning Dao broke through to the fifth level of Chang Sheng, while the Earth, Fire, and Water Daos successively broke through to the fourth level of Chang Sheng.
His Wind Dao still had quite a ways to go.
And all four of his Four Saint Swords had already idled to their corresponding realms.
Among the Daos he comprehended, the Dao of Slaughter had progressed the worst. There was no helping it—the Sacred Hall had no secret realm that could aid in cultivating the Dao of Slaughter.
Relying solely on Origin fragments was simply not enough.
Thus, Chen Fan rarely wasted time actively cultivating the Dao of Slaughter.