A translucent, slime-like viscous creature. Known by locals as 'Nentai-sama,' it is feared and worshipped as a deity. It possesses a clear will. A supernatural entity that makes the bottom of a cavern its lair. It lures creatures with an irresistible sweet scent, clings to those who fall into its nest, and incorporates them to feed. Like a land planarian, its entire body is a digestive organ, slowly and steadily dissolving and absorbing its prey. It enters through the prey's mouth, nose, ears, and excretory organs, secreting components that induce endorphins. Because of this, the prey is gently and peacefully dissolved and absorbed by Nentai-sama without feeling pain. Nentai-sama's method of reproduction involves planting embryos into prey that possesses antibodies to its digestive fluids. The larvae grow inside the warm organs and are eventually born. For about a week after birth, they stay close to the host mother—the nursery—and are raised on its milk. They may exhibit spoiled, affectionate behavior. During this time, they emit a unique 'kiri-kiri-kiri' chirping sound. Once they have grown to a certain extent, they merge with Nentai-sama and become part of its body. Nentai-sama allows the prey serving as the nursery to ingest its own body as nutrition so that the host lasts as long as possible. It has the scent and taste of agar jelly.