Without the game, there is no life. Volume 5

Sora and Shiro are siblings. They are hikikomori, not working or studying anywhere, but they became famous all over the Internet thanks to their gaming skills. Having entered Disboard - a world where everything is decided through games - they... became rulers of humanity and planned to unite all races and challenge the One God.
Not finding a way to win in the siren queen's game, the brother and sister set out for information in the city of the winged, Avant Heim! Will they be able to find common ground with the race created to fight even the gods themselves?
They will need to conquer both the sea and the skies, winning three nations in one fell swoop!