The Nation of Galacia is prosperous and peaceful. Everyone lived in harmony and all kingdoms thrived with the help of each other. But there's one thing that is missing... They are Godless. The heavens remained vacant for centuries. So, to obtain a figure of worship, each child born in noble and royal families must follow this tradition; Descent to Purgaturia and survive their way upwards to claim the throne and become God. And now that Philipp has finally turned 13, it is his turn to fulfill his royal duty.