On a storm‑racked, thunder‑roaring night, three‑and‑a‑half‑year‑old half‑dragon girl Lumi knocks on the castle gates of Dragon Archduke Valerius. She carries a blood‑debt contract forged from her late human mother’s last spark of life, along with half a dragon scale, and demands “reimbursement for child‑rearing expenses”. Her arrival shatters the power balance within the Dragon Senate and draws ferocious suppression from greedy kinsmen. As the bloodline test proceeds and memory crystals lay bare the truth, the conspiracy from three years prior slowly comes to light. The Archduke was gravely wounded in the Abyss Campaign and fell into a magical‑backlash‑induced slumber. Seized by jealousy, his second younger brother slipped poison into his system. Allying with the secondary branch of the clan, they cast an information‑shielding barrier and drove out his beloved human healer — who was carrying his child — to her death. Hard‑hearted dragon overlord Valerius is softened and healed by his young daughter’s innocent warmth. Transforming into a ferociously protective father, he swears to make everyone who harmed mother and daughter pay in blood
