Mogecuckoo

After saying "Open up, dude!!!", a door appears at the back of Mogeko Castle's library. Almost ready to leave Mogeko Castle, you decide to enter. The first thing you encounter is a floor that seems to be made of floating clouds above an endless sky, with chicks, eggs, chicken cookbooks, and basically everything else tailored to this species. There are even defenseless mogekos, who simply say "Tweet" when you approach. Now familiar with how Mogeko Castle violates, aside from high school girls, every law of physics or space, you simply keep moving forward until you encounter... Mogecuckoo, a mogeko in a chicken 'costume'

"Cluck, cuckoo..." he says to you kindly, over a hollowed-out egg to function as a throne.