After crafting his impregnable "Absolute Domain," Lin Changsheng could finally embark on his path of "secret development" without any reservations.

After reaching Foundation Establishment, he realized that solely relying on meditation to absorb the Spiritual Qi of Heaven and Earth was incredibly inefficient. Even though he resided in a top-tier cave residence where the Qi was so dense it had liquefied, he still found this snail-paced progress to be an unbearable torment.

"No, it's too slow."

"I need to find a faster way."