Toriyama Sekien
Usually, they are not depicted accompanied with anything other than a black cloud, but in the "Gazu Hyakki Yagyō" by Toriyama Sekien, they are depicted on top of a sluice. However, there is no accompanying explanation, so details about it are unknown. Concerning the name "akashita", the modern literary scholar Atsunobu Inada among others suggest that they are related to the shakuzetsujin (赤舌神) and shakuzetsunichi (赤舌日), who protect the western gate of Tai Sui (Jupiter) as explained by onmyōdō.