En has no prospects as a child of the slums—he ekes out a living by selling the artificial armor" he scavenges to anyone who will buy. But when he's forced to go through some unethical experimentation, he transforms—making him eligible to become a fighter in the only thing that matters in this bleak world: The Rokudo Tournament!"
Iko, you have to change. Iko has been treated by her father like his property for her whole life. In a fight to save her soul, En climbs the ranks and challenges Orca in round one of The Plummeting Hell. But how will he fare when faced with the power of a million concentrated into one in the form of a cyclic release point? Driven into a corner in the depths of Hell, En must undergo a radical change to keep going and stay conscious...