The Two of Us Shall Waltz.A month following the battle at Zantleaf, Estal holds a grand ball for the adventurers in their victory against the goblin general, which Shiroe includes in his plan to eventually defeat the Goblin King. At the same time, Shiroe learns of an event called the Demon Festival of Suzaku Gate which occurred in the west of Yamato. While walking the Palace of Eternal Ice, Shiroe listens in surprise to a mysterious woman cryptically telling a group of children the story of how he saved Rundelhaus. Afterwards Shiroe visits Regan and learns that another adventurer in the district of Minami had also used world-class magic and that the Izumo Knights were involved in the Demon Festival...