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

Erebus was held in place due to the pain of getting hit by the holy brilliance of Lilith's sword, Ascalon. It was only for a brief moment, but it was more than enough for Aqua and Isla to close the distance, with their respective weapons clad in a thick amount of mana.

The two of them instinctively knew that if they missed this chance, there wouldn't be another one anytime soon.

Aqua and Isla's voices merged into one as they waved their weapons simultaneously.

The mana clad around Isla's Trident turned into a violent storm, ravaging her immediate surroundings, before it landed on Erebus' left side. Aqua, on the other hand, waved the Trishula in a wide arc while the tip was destroying the space it passed through before it hit Erebus' on its right side.

Both attacks connected—a solid hit!

As Expected of a God