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I am a Problematic Dungeon Master

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?

SeraphWedd · Fantasy
Not enough ratings
285 Chs

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"That was close..." Ein sighed as he wiped his cold sweat.

The space around them was cracking then, so he felt danger for their lives. In that instant, Ein activated the Emergency Return Function that he had set up beforehand. With that, they immediately returned to the dungeon master's room without a time lag. The function then entered a 24-hour cooldown, becoming unusable for the time being.

A short delay later, a small popup appeared before him.

[Notice! The entrance to the world XS1100B39 has been destroyed! Returning 10% of total expenses in DP... Received 10,000,200 DP]

"Oh, there's a rebate?" Ein smiled a little.

It was only 10% of the total, but it was enough to cover the expenses of their Emergency Return. That cost them 1 million DP for each person registered, meaning he spent 6 million just to return the six of them to the dungeon master's room. Still, this meant he wasted a hundred million DP on nothing.