For ages now, humanity has stood strong against the Monster Girls, and has managed to avoid becoming their foot-sniffing slaves. However, the Demon Queen of the Monster Girls has come up with a plan to crush humanity's resistance to her.

She has created Six Monster Queens of Stink, and has sent them out into the world to enslave as many humans as they can. These Queens have all created their own kingdoms, and relentlessly attack the kingdoms of humanity.

These six monster Queens include the Gorgon, Lebentina. She's a snake haired Monster Girl known for her incredibly cheesy foot stench. She reigns over the Gorgons and western mountains, and is dressed in latex which keeps her nice and stinky at all times.

The next Queen is the Catgirl, Aris. Aris is a famous for her incredibly foul scented footwear, said to smell so bad that even her fellow Monster Girls may be knocked out by a few whiffs of her shoes. She reigns over the southeastern plains and is a bit of a footslut despite her power and position.

The third Queen is the Arachne, Macta. Macta has eight feet, and all of them have an incredibly strong vinegar scent to them. She enjoys wrapping others up in her webs and forcing them to sniff her feet. She is also capable of taking up a more humanoid dark elf form, though only does so when dealing with arachnophobes.

The fourth Queen of Stink is the Vampire Elizabeth. Elizabeth is renowned for her incredibly thick and gooey toejam, and Monster Girls serving under her beg for the chance to eat it. She also dresses in latex, and despite her regal and domineering attitude, she becomes a complete footslut for vinegary or garlic scents.

The next Monster Girl Queen is the Dragon, Cepha. Cepha is incredibly sweaty, so much so that standing in one spot for a few moments will create a puddle of the foul smelling fluid. She's a prideful monster girl, and is perhaps the most prolific in raising up other monster girls to positions of strength and power.

Sixth amongst the Queens of Stink is the Fox Spirit, Mayumi. Mayumi has generally foul smelling odor, and is also known to enjoy farting on her victims.

You meanwhile are a young adventurer, just about to start on a quest to defeat the monster Queens.