At the outset of the design, Wu Yazhi estimated that it would take about three months to start producing results. Depending on the speed of extraction, it indeed wouldn't require too much time. However, if it were slow, spending several years or even over a decade wouldn't be strange.

For Loose Immortals, spending a few hundred years to refine a weapon capable of withstanding the Heavenly Tribulation is quite ordinary, and that's not even considering the possibility of failure.

Therefore, Loose Immortals pour their hearts and souls into their weapons designed to resist the Heavenly Tribulation, the more powerful, the better.

With every additional thread Wu Yazhi extracts now, his future weapon will gain that much more power, so he aims to extract as much as possible.