Dean

When the outer wall in the center of the sewer collapsed, a mushroom cave was discovered behind it. Having been untouched by man for so long, the cave was filled with all kinds of rare fungi, and that excited my colleagues. But they were no simple mushrooms.

They suddenly started moving and attacked my colleagues while they were investigating the cave. Myconids... that's what the survivors called the mushrooms.

Please exterminate the myconids in the mushroom cave before they move outside the sewer and reach aboveground.