SeraphWedd

In the year 2025, for unknown reasons, dungeons started appearing all around the world. Monsters started invading nearby cities and massacring the citizens. The world population was dropping by the millions each day. To fight against the monsters, the whole world decided unanimously to create genetically modified human beings called "Warriors" by injecting a serum they called "Elixir". Thus, started the counterattack of the human race.

On a certain day 12 years after the start of dungeon appearance, while raiding the last and hardest dungeon in the world, an event occurred. After getting betrayed by his teammates, Warrior Ein was pushed down a bottomless pit just before facing the last boss as a sacrifice. Regret filling his heart, he cursed at his former teammates, swearing to take revenge against them before losing consciousness.

However, when he opened his eyes, he found himself as a dungeon master in a new world. Since he will die if the dungeon gets conquered, he decided to protect his dungeon from invaders while searching for a way to return to Earth. Will he be able to return to Earth and enact his revenge?

I am a Problematic Dungeon Master

Ein surveyed the surroundings, but it was a flat location with nothing obstructing the view. The only things that they could see, other than the large hole above their heads that was slowly closing, were a pitch-black blob and a shining teleportation array behind it.

"... Is that the boss?" Ein furrowed his brows, frowning deeply as he stared at the last enemy they had to face.

Just from a single glance, Ein decided that it wasn't something that was worthy of being the last defense. He was confident that he could take it out with just one flick of his finger. Since he was not feeling any threat from it, Ein moved forward a few steps.

Michelle tried to stop him after realizing what the blob was, but her warning came a tad too late. The blob, as soon as Ein entered a certain distance, started trembling. Its glossy black surface rippled as if on the surface of a calm lake when a stone was dropped.

Saved by the Bell