A variant of Slime that exists in the sewers of the cities of the New World like on E-Rantel and the city of Loyts in the Roble Holy Kingdom. The species lives in apparent symbiosis with the inhabitants of the cities, but when their numbers grow they start to seek food outside the sewer.
They were usually used to process sewage and had multiplied due to over-nutrition. As other slimes, they possess corrosive attacks.
- They are the first species of slime confirmed to naturally exist in the New World.
- In the Holy Kingdom, when the Sanitary Slime population grew in rapid numbers, they were typically burned back down with magic items.