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

Around the time that Ein had lost consciousness and when Michelle was undergoing a life-and-death battle against the avatar of Bune, one of the dukes of hell and a member of the Chaos faction, trouble was creeping closer to the dungeon.

One of the elven guards, diligently doing his work atop the outermost wall, saw signs of movement within the forest despite the darkness of the night. He immediately relayed what he saw to the guards below and asked them to check. The two guards quickly went ahead and entered the forest to scout. They tread silently and carefully along the familiar path of the forest and stopped only when they noticed signs of movement ahead.

"Oh no," one of the scouts mumbled in a low voice.

In front of them, an army of an unbelievable scale was marching towards them. The flags they were carrying, shone on by their torches, depicted a lot of different territories, all of which were situated relatively near the borders.

A Surprise "Rabbit Punch"