Grade 1 treasure, Fruit of Undead! (1)

The passage beneath the cemetery runs out like the branches of a tree. Everywhere they went, they would see countless intersections that lead to the unknown...

The black ink liquid beneath them slowly increases, already reaching Leo's above-heel as he moves toward the unknown direction... Dyeing his feet with black as it slightly hindered his movement due to its stickiness that stuck to his soles as he moved.

As he entered through another intersection, Leo would immediately carve a symbol within the earth and bones in the surroundings, ensuring that they wouldn't get lost if they decided to go back...

...

"The concentration of Qi increases again."

He mumbled under his breath as he could see a dark smoke that roamed within the passage unhindered, moving back and forth unconsciously, tempting their being to absorb it.

"System, what is this?" Leo asks within his brain, unable to comprehend the thing in front of him.

Ding!