This is an unknown chamber in the underground city.
The chamber has only one entrance and exit, surrounded by walls glowing with dim phosphorescence, filled with obscure darkness inside, like a ravenous beast ready to engulf anyone who comes here with its gloom.
In such an undisclosed chamber, a strange sound occurred.
"Crunch... Crunch..."
This is the sound produced when a hard object is being devoured piece by piece.
On the chamber floor, amidst a vast gray sea, countless monsters have turned into corpses, staining the ground with blood while continuously transforming into scattered dust.
"Splat!"
A voluptuous red-haired woman held a large crimson sword in one hand while penetrating a monster's body with a hand as sharp as a knife, extracting a blue-violet crystal—magic stone—from the monster.
"Boom!"
The monster, having its magic stone extracted, immediately turned into flying ash, becoming a heap of piled-up dust.
"Crunch..."
