After an adopted sister claims national acclaim by stealing her botanical elixir, the victory backfires into a mandatory matrimonial summons from the dreaded serpent ruler, rumored to be monstrous and infertile. Terrified of the reptilian monarch, the sister manipulates their family and secures the apothecary's fiancé for herself, leaving the true genius herbalist to be traded away as a sacrificial substitute bride.
Expecting cruelty and exile, the young herbalist instead encounters a fiercely protective and strikingly handsome serpent sovereign who cherishes her brilliant pharmaceutical intellect. As her healing salves restore the sovereign's sacred clan vitality, the deceitful relatives back home face total exposure and disgrace. When her remorseful former lover crawls forward begging for reunion, the serpent king shields his bride with lethal possessiveness.
