The sensation was far more painful than when he had cultivated his external acupoints.
Even with his consciousness and vitality drawn away, he could clearly feel his heart trembling.
His body was instinctively resisting!
But things had already reached this point. Giving up halfway was clearly not an option.
So Lin Ke could only control the power as it entered his acupoints bit by bit, ensuring the tempering remained effective without overloading his body.
It was an agonizing process.
Opening this single acupoint alone took nearly two hours.
Throughout those two hours, Lin Ke tempered it continuously, then poured in vitality to repair it again and again.
Only after repeating this cycle did he finish tempering the first acupoint.
Then came the second, the third...
Only after cultivating nonstop for an entire day did Lin Ke finish cultivating all his internal acupoints.
At this moment, every opened acupoint in his body was like a parched desert, desperately in need of spirit power to nourish it.
His whole body was hungry and thirsty.
Thus, once all the tempering was complete, Lin Ke began frantically absorbing spirit power to replenish his strength.
At this moment, his body truly could be called a bottomless pit.
It absorbed any power it encountered, storing it in his acupoints afterward.
And the power each acupoint could store was enough to rival the spirit power an ordinary Dao Foundation Cultivator could hold.
Lin Ke could now be described as a walking storehouse of spirit power.
In battle, his sheer reserves of spirit power alone would be enough to wear an opponent down in a war of attrition.
Not to mention that he could combine them with all kinds of spell arts.
And as his spirit power accumulated, his Nine Luminaries Sun-Illuminating Scripture responded once more.
He could