Casey is accused by her clan of summoning the Nightmare Beast and becoming the Realm's Scourge, threatening the clan's survival. Despite her protests that the creature is an ancient divine beast whose harm would cause heavenly punishment, her father insists she is lying to buy time and orders her execution to prevent disaster. The clan prepares to strike at Casey, expelling her from their records, but just as they move against her, questions arise about the true identity of the beast and the possibility of a heavenly tribulation, leaving Casey's fate uncertain.