Found in the hidden corners of dirty houses (especially bathrooms) or bathhouses, these monsters use their long cleansing tongues to consume biological liquids and residue - this includes bodily fluids such as cum and lubrication.
Akaname are known to be snarky and lascivious neat-freaks, that love to clean and pleasure at the same time.
Best to not be too messy or loud around them, as they tend to get a little melodramatic and spiteful.
Akaname are human (if a bit smaller) in size, and may appear as any ethnicity with largely monochrome coloring. They have a human penis of medium or smaller size, as their tongue is their main feeding and sexual organ. They do not truly reproduce, as they are born through fidesis.