The Seven Hero Bloodlines were in deep introspection upon learning that the Hero Academy's Counselor, Caelen Sol Caelthorn, perished on Ranaya Island without knowing that he had turned against humanity by joining the demonkind, thus receiving the mark known as [Soul Penitent].
That's why when the sole candidate from the Astraea Family opened her eyes from slumber and informed the other bloodlines through communication artifact, they doubted her words and called for her presence to an ancient and sacred dimension known as the [Judgement Chamber].
It was an isolated dimly lit place of one circular platform surrounded by seven lofty stone pillars, where the subject of [Trial for Truth] would stand in the middle and would eventually be judged by the Hero Bloodlines' Family Heads.
Only the truths should echo in such a place. Or else, death by light would follow.