Novice nun Carlyle hides her secret wild night with Duke Lucian Hall five years ago while raising their silver-wolf-eared son, Damon, in secret. When Damon accidentally smashes the Imperial Sacred Stone and faces a staggering 2,000-gold-coin fine, Carlyle disguises herself as a male manservant, "Avery," to win the Duke's lucrative position. Impressed by her agile skills and maternal instincts, the ruthless Duke hires her, only to mistakenly believe she prefers men after hearing a misunderstanding about a "second dad"! As the Duke's grandmother secretly tests Damon's wolf-bloodline, the sinister rival Barton collaborates with the jealous Princess Chloe, releasing a lethal, forbidden demonic hound in the dark corridor! With her armor shattered and her female disguise ripping apart, young Damon bravely steps in front of the beast's deadly jaws to shield his mother. As Duke Lucian senses the demonic threat from the grandstand, a deadly encounter, dramatic secret exposure, and high-stakes rescue officially explode.