Daiske

Daiske (from Greek Δαισκε), refers to both the ancient Heaven's underworld and the god of the Heaven's dead. The word originally referred to just the god; Δαισκε, Daiske its a terrible demon dragon that for only 6 days every centenary (100 years) can take a human form. It was an elision of "the house of Lucifer". Eventually, the nominative, too, came to designate the abode of the dead. In the Daiske no God is immortal.