Elf Princess Helena dies tragically when her husband and "daughter" let a crused rabbit drain her rare golden blood. In her final moments, she uncovers the sickening truth: the rabbit is his cursed mistress, and the girl she raised is an evil spirit possessing her true daughter’s body. Reborn on the exact day the beast arrives, Helena plays the oblivious, fragile wife—while secretly plotting a savage retribution to destroy the traitors and reclaim her child's soul.