What's left of the Demon King's castle... The human race attacking the Demon King's castle is nothing new and has happened countless times before. What makes this time different though, is that the Adventurers decided to join forces with the Imperial Army and the 'Hero of Caerleon' to finally succeed in the total destruction of the Demon stronghold. All of the demons in the castle were taken prisoner except for one lone skeleton named 'Skul'.