Of the things that came with the arrival of an alien being, the weakest of all of them are the slimes. Nobody knows what exactly these things are, but, as weak as they are, nobody's succeeded in destroying one of the dungeons from which they spawn.

Julius Anderson, a modern day crusader, takes the job of eradicating one of these slime dens. Hired on to help him is, well, Julius refuses to learn his name, on account of him being "diseased" with magic, but he's a healer. Through teeth-clenched teamwork, can the duo reach the bottom floor and destroy the source of the slimes?