
To fulfill her mentor's dying wish, the witch Eve infiltrates the imperial barracks and rescues Kane, a dragon-blooded boy held captive as the weapon codenamed "Heaven's Scourge", and forges a blood-bound symbiotic pact with him. During their escape, Eve awakens Kane's humanity and will. A profound bond grows between them as they fight side by side, yet they gradually walk into a devastating scheme devised by the Inquisitor. Through life-and-death choices and soul-shattering trials, the two finally break their shackles, end the conspiracy through soul symbiosis, and stride toward a brand-new dawn together, bearing their past and hopes.