"Get me a mid-grade medicine cauldron!"

"Okay, please wait a moment, senior." The female cultivator, who was at the late stage of Qi Refining, then took out a mid-grade medicine cauldron called the [Heavenly Sea Cauldron].

That's quite a prestigious name! The same name as Tianhaimen?

Lu Xuan murmured to himself.

After some haggling, he handed over 350 spirit stones and took the Heavenly Sea Cauldron with him.

Return to Sunset Valley.

Lu Xuan began refining pills.

Start by refining pills for the initial stage of Qi Refining.

Lu Xuan had many of these elixirs and formulas in his storage bag.

One month later!

Lu Xuan has already mastered the technique of refining pills for the early stage of Qi Refining!

Three months later!

Lu Xuan is already able to refine ordinary pills for the late stage of Qi Refining!

However, the potency of this medicine cauldron is clearly no longer sufficient.

If you want to try refining a top-tier pill at the Qi Refining level, you'll need a high-grade medicine cauldron.

Just when Lu Xuan was at his wit's end, he discovered that this Tianhai Dingba was no ordinary creature!

After thinking for a moment, Lu Xuan used the Taiyi Flying Sword to crack open the outer shell of the Heavenly Sea Cauldron!

Finally, a brand new purple bronze cauldron was revealed!

The words "Tianhai Ding" were written inside!

The Tianhai Cauldron's grade has now far surpassed that of a high-grade medicine cauldron!

Just as Lu Xuan was pleasantly surprised.

A remnant soul flew towards Lu Xuan's forehead, and in the blink of an eye, it entered Lu Xuan's spiritual platform, transforming into the phantom of an old man with a white beard who laughed heartily.

"As long as I possess this body, I, True Person Tianhai, can see the light of day again. It's a pity that I only have the aptitude of five spiritual roots! However, with my experience of nearly a thousand years, it is not difficult to cultivate to the late stage of Foundation Establishment. Then, if I find those ancient cultivation caves and the rare treasures in the Heavenly Capital Secret Realm, there is a glimmer of hope for Core Formation."