Chapter 21 Showdown In Under World

After Defeating Demon Lord On Earth Then Mask Is Go Under World There Mask Is Find Out In Under World Actually Rule Not Demon Lord But Demon Empress And Demon Empress Is Held Fight Tournament Every Day For Her Entertainment Then Mask Is Join With Kokou A Female Demon Warrior Fight Against Demon Empress So Demon Empress Is Call Her Army But Mask Is Defeat Them Like They Are Nothing But Dust By Using A Technique Called Rebellion Rapid Shot Then Mask Is Fight Against Demon Empress With Kokou And Defeat Her Then Prison Her In Under World Then Mask Go To Spirit World