The Demonic Sea was an apt name for this body of water filled with demonic creatures. The creatures that swam in it were stronger than any of the monsters Yeon-woo had seen so far, even though he only skimmed it with Extrasensory Perception.

The deeper he went, the more horrific and gruesome monsters he encountered. They could easily swallow the ones on land, and their appearances were so strange that he wondered if they were truly lifeforms. He couldn’t muster up the courage to sink even deeper. His soul felt shaky just from the monsters’ energy. It was also dangerous because a few curious creatures noticed Yeon-woo’s senses and tried to make contact with him.

He couldn’t even dream of the types of creatures that lived in the depths of the sea. It didn’t seem like the creatures had any feelings of solidarity or camaraderie either. They were always wary of each other, looking for weaknesses and preparing to rip another creature’s neck off if given the chance. It was evident they were trying to grow their individual strength through predation.

They were monsters that exemplified survival of the fittest, and they had no choice but to grow strong. In fact, Yeon-woo felt the only thing the monsters had in common was their strength, which seemed to...