Deep below the earth's surface, a mystifying subterranean seascape lurks, an archipelago bathed in inky blackness where suspense and horror hold court. Here lie strange islands and even stranger monsters, far beyond the realms of human imagination. In this domain, mankind is far from dominant; instead, madness and death rule supreme. Pleading for mercy from the unknown creatures of the deep only leads to a slow, tortured existence. The trapped survivors gradually distort, losing what made them human, both physically and mentally, to the gloom as they remained trapped in this eternal obscurity. Their only hope? A perilous expedition into uncharted sea territories. Fueled by determination, the brave Charles embark on this daunting voyage aboard his steamship, aiming to reclaim humanity's past glory. Together with his crew, they sought a way out of this hidden sea world, a path back to the sunlit world above, where humans once stood tall.

Yeon-woo's twin brother disappeared five years ago, only for his pocket watch to suddenly fall into Yeon-woo's hands. Inside, Yeon-woo found a hidden diary. "By the time you hear this, I guess I will already be dead..." Obelisk, the Tower of the Sun God, is a world where several universes and dimensions intersect. Yeon-woo's brother had died after being betrayed while he climbed the Tower, and after learning the truth, Yeon-woo decided to climb the tower with the help of his brother's diary. "From now on, I am Cha Jeong-woo."

In the depths of the underground world lived the descendants who were born and raised by feeding on the teats of beasts. These individuals with special abilities and enhanced physical abilities were known as dungeon babies. Amongst them, Kim Jin-Woo was born in the labyrinth on the lowest floor. “I’ve never tried to become strong. I just wanted to survive.” This is a story of a lowly tunnel digger who ascends the throne to become the king of a labyrinth.

Earth, the land that the constellations were aiming for. Hunter Choi Yeonseung decided to start special training to stop the constellations that want to monopolize Earth. His training location was the Abyss, a space where time flowed infinitely slowly. However, Choi Yeonseung was suddenly caught up in a magical storm and had to face the harsh Abyss head-on. Choi Yeonseung went through unprecedented and infinite practical training throughout the Abyss and discovered a clue to be the first human to become a constellation. The hard-working hunter, Choi Yeonseung, was reborn safely as a constellation. Will he be able to save Earth, which is destined to fall prey to the constellations? The hard-working, overpowered martial artist, Choi Yeonseung! The path he walks on to become the first human constellation!

Lu Ran had long since known that his path in life differed from others when he awakened a special ability one day. Sure enough a mysterious black card appeared, giving him the chance to become a beastmaster. With his loyal husky by his side, he sets out on his path to greatness.

Hunters getting sponsored by their Sponsors, and amongst them, the most dazzling 12 heroes of them all. They claim themselves to be Gods and started Eden. Eden ruled the world. That was the era that Lee Jun-Kyeong had been living in. Hunters rule the world that normal citizens are living in, like domesticated animals. However, Lee Jun-Kyeong had a special book in his possession. It was about the life story of a forgotten yet true hero, the Demon King. One day, one of the 12 heroes, Athena, came looking for him. 'It's the past? Over a hundred years ago? When Hunters first started appearing?' However, he fell back into the past. The Demon King's sponsor, The Sky of the Apocalypse, had sponsored him instead. Although he walked a similar path as what the Demon King took... 'It wouldn't be the same as the Demon King's.' I dreamt of a much better future than the Demon King; using the very same power that the Demon King had, I would become a Player above all hunters. 'From today, I'm a Player.'