Transmigrated into a Demoness's Spirit Slave? I Turn Around and Hand Myself Over to the Cultivation World

Shi Yan transmigrated into a demonic cultivation sect, where he became a lowly spirit slave, doomed to have his cultivation drained until he died.

With nowhere left to turn, he unexpectedly made contact with the modern world.

Tens of thousands of people offered advice, while Bureau 749 gave him its full support. Using big data to run simulations, they saw through every scheme, synthesized weapons and pills, and improved cultivation methods and secret manuals.

The most common low-tier spells could become world-ending divine arts with just a few tweaks.

The sect's upper ranks were shaken. The elders and stewards grew wary and sought to kill him before he could become a threat.

In the dangerous grounds of the demonic sect, beauty and deadly intent lurked side by side. He would have to proceed with utmost caution to walk the path to immortality.