A muffled bang came from Long Chen’s pill furnace. A helpless expression appeared on his face.

“It’s been so long since I did any alchemy, I feel out of practice.” He looked at the pile of pill dregs in his pill furnace. Not even a single pill had formed.

The Seven Stamen Seaheart Fruit was a seventh tier medicinal ingredient, while the Sea Merging Pill was a seventh tier pill. And even amongst seventh tier pills, it would be one of the most difficult to refine.

For most alchemists, their cultivation bases would have to reach Sea Expansion or above just to refine a sixth tier pill.

Last time in the Pill Tower’s competition, he had refined the Overflowing Sea Expanding Pill. Although it was a sixth tier pill, it was something used by Sea Expansion experts. Because the requirements and difficulty in refining it were too low, it could not be counted as a seventh tier pill.

A medicinal pill’s tier normally corresponded with a cultivator’s cultivation base: first tier - Qi Condensation, second tier - Blood Condensation, third tier - Tendon Transformation, fourth tier - Bone Forging, fifth tier - Meridian Opening,...