Forbidden Arena

The Ahib following Shadow Knights and Sephir reopened the Forbidden Arena that had long been sealed in the Crypt of Resting Thoughts. They call it the Shadow Arena, where shadow heroes are summoned to fight against the looming darkness that is Hadum, the God of Despair and Darkness. Yet Hadum's encroachment, if it cannot be seen or touched, cannot be fought even by a hero of the arena.