Six Demons, One Atheist

When six kingdoms that worship the six different versions of the devil begin to fight. A teen from each satanic kingdom leaves in the middle of night to escape the conflict that may last for all of eternity.
In their group fugitive escapade they come across, another runaway who seems to not worship any of their satanic gods. And comes from a calm kingdom of no violence and everyone is like zened out.
As this atheist runaway leads them home to their kingdom, the group face many quest and battles in order to arrive. And even more once they get to the kingdom.