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

Hundreds to thousands of dragonkins knelt before Ein. It was an amazing sight to see powerful beings like them kneeling like loyal retainers before their king.

However, Ein was slightly taken aback. He was expecting them to look down, demand names, and drive their group off the continent. Immediately kneeling before him was something he didn't even imagine.

"Me? Grandmaster?" Ein asked, confused.

To answer his question, the one at the front, a large dragonkin with golden scales, stood up, keeping his head slightly lowered. His bulging muscles were definite proof of his overflowing strength, probably reaching Sandra's and the other's level. Well, in terms of physical strength only, though.

"Yes, Grandmaster. We have felt the wave of your power and deem you worthy of our service. From now on, we'll swear fealty towards you and you alone."

Of course, this was just bullsh*t that he spouted.

Winning Without a Fight