

Within the halls of Golden Feather Academy, wealthy stepsiblings Tanya and Leo, bound by family but not blood, hold court as the institution's dual reigning icons of popularity. As the holiday break ends, the queenly Tanya sets her sights on the newly elected Student Council President, Logic—son of the nation's president. At the grand ball, her calculated allure meets only his icy dismissal. Stung and pride inflamed, she makes a reckless wager with her notorious playboy stepbrother, Leo, who has just slipped into her bedchamber under cover of night: if Leo can seduce and shatter the seemingly incorruptible, iron-willed heterosexual scholar Logic within one month—turning his arrogance to ashes and his reputation to ruin—she will grant him the one thing he's craved for years: a night in her bed. The libertine Leo, who believes his charm can conquer anyone except the elusive Tanya, acknowledges the formidable challenge of making Logic fall in love. Yet, brimming with audacious confidence, he accepts, plunging them all into a twisted game of seduction and vengeance. However, as the month draws to a close, a chilling realization dawns on Tanya: not only has she been denied the sweet venom of revenge against Logic, but she may have irrevocably lost the mercurial, ever-devoted Leo—the brother whose affections she'd always held in a delicate, dangerous dance of veiled dominance—to the very heart he was supposed to destroy.

As children, Gigi Murray and Milo Sanford made a pinky promise to marry each other. Eighteen years later, Milo has become mentally impaired, but Gigi remains devoted and marries him. After a fateful accident, Milo regains his memory, only to discover that the person who killed his parents is none other than Gigi's adoptive father. Consumed by rage, Milo turns against Gigi. Amidst the turmoil, Gigi's true identity is revealed, uncovering a web of secrets and betrayal.

In the 21st century, Nobel Prize winner Blaire Elliott extracted a key element from meadow fescue that advanced modern medicine. Unfortunately, she was struck by lightning and found herself in the body of another Blaire Elliott—a notorious troublemaker living in a rural village in the 1980s. The bully had done countless wicked deeds, yet her family still adored her unconditionally. Furious at her predecessor's waste of affection, Blaire swore to use her medical skills to lead her new family to prosperity.

To avenge her father, Vivian Gale disguises herself as a man and infiltrates the Imperial Medical Bureau, becoming the empress dowager's personal physician—while secretly plotting her downfall. Misunderstood as a foe, she faces repeated assassination attempts from Emperor Edmund Mortimer. Their clash of wits ignites unexpected feelings, until her identity is revealed. They eventually unite to overthrow the empress dowager's tyranny—and find love amidst vengeance.