"The key to the Demon Palace sounds very important, but how is that even possible?" Barlu asked.
"Balu is the most legendary place in our spirit world. Legend has it that ty exigency came to our spirit world about twenty-five thousand years ago, a human monster from the M Domain. I heard that the M Domain was destroyed by him. It was a human civilization that was buried in his hands. He wore a mask all the time and was accompanied by a pile of puppets that he made, so he's called a puppet master. His skills are extraordinary. He is omnipotent in the world, and even the heavens can't do anything to him, let alone in the spirit world. But no matter how powerful he is, he's still a human. He's going to the spirit world to build his own grave, the Demon Palace, and then die there. Everything
