King mogeko later punishes Defect Mogeko for unknown reasons.

He made the castle with seven floors, and he also had Mogekos immigrated to other worlds like the Blue Sea, The Gray Garden and many other worlds. Some Mogekos were affiliated with the Flame world and the Sea of Death.Д«efore the events of Mogeko Castle, there was a king who's origins were unknown was an lonely Mogeko who made a whole kingdom to himself. Mogekos are shown to be into high school girls (even those who graduated and possibly those who go to junior high or lower even underaged), they would stalk them and would sent them to the castle and imprison and enslave them where they would raped and abused offscreen. If infected by Blancfluff Mogeparasite the Mogeko will turn to Mofuko, Mogekos are implied to be flexible as one Mogeko in Ice Watching had his ears twirled up. Mogeko's are born from eggs then to larvaes, they would later develop limbs once they reach into adulthood.

They are shown to be very sensitive when Yonaka takes their prosciutto this would result the Mogeko to break down into tears. Though are shown to have a weak anatomy which they are very easy to defeat, but they are strong in a group. They shown sentience like speak the human language, read, write, use weapons, work, tools and machinery, count, use vehicles, etc. The Mogeko appear are shown to be cat like creatures they have yellow fur, two closed eyes (they thinly open their eyes), a open mouth, thin mouse like tail, a small body with short arms and legs, razor-sharp fangs, akin to that of a shark and extremely long tongues.

Mogeko castle gaiden