Lee Shin felt like the mana blood vessels in his entire body were about to burst.

All his muscles were throbbing and Lee Shin’s condition was so severe that he had to recuperate quietly for a while.

Lee Shin forced his weak legs to move and went down the stairs that took him to the deep underground. He became so weak that he could barely use basic level one mana. Nevertheless, he mustered all his strength and walked down the stairs.

'I can't feel death,’ Lee Shin thought.

If this place was truly dangerous, Lee Shin could have felt death coming near. However, that was not the case. Rather, he felt like he had to go down here to survive. After some time, he saw a small altar at the end of the stairs.

"Wait, this is..." Lee Shin muttered.

In front of the altar, there was a monument similar to the one he had seen above ground. Lee Shin approached the monument and read the writing there. It was an ancient language, just as he expected.

"Only those who are qualified can climb," Lee Shin read the inscription aloud.

What kind of qualification were they talking about? This was the only sentence he could read among several. Lee Shin passed the monument and stood on top of the altar. There stood an indecipherable gargoyle, a mysterious figure with such intricate details it was hard to make sense of what it was.

‘Hmmm… This is…’ Lee Shin thought.

Below it, there was a pattern and an ancient...