Description
This is the story of ten different demons from two different families. Their fathers, Lucifer and Leviathan, long ago made a deal so they could decide which of them would become the true ruler of the Underworld. The agreement states that their firstborn children would have a duel, to the death, and the winner would earn the title for his or her father. They each would have 1,800 years to train their child into the best fighter possible. However, they each went extremely overboard. Lucifer, forcing his daughter to train well past her limit while keeping her chained up for months at a time; and Levithan, forcing his son to endure "brain washing" through electric shocks, acid, and other forms of torture. While they were still young, the two children met unexpectedly. They each share their experiences with the other and soon find that neither of them wishes to win for their father's gain. Together, they come up with a plan to change the Underworld. Shortly before their duel is set to happen, the two leave their homes and hide away. They join a mercenary guild as a way to mask themselves in normal society and continue to train daily for the uprising soon to come. That is, until the youngest Levithan sibling comes searching for his long lost brother.
Preface
