

Joanie Sadler and Laurent Goff met and grew up together as children in an orphanage. After leaving the orphanage, Laurent set out to build a career and promised to one day give Joanie a home. Joanie was later adopted by Peggy Boswell and Benjamin Francis, a couple who had lost their own daughter. Peggy sees Joanie as a replacement for her lost child, and when Joanie's birth parents later come to claim her, the Francis couple forges false paternity test results to keep Joanie. Years later, the Francises' real daughter Joanna is found, causing the couple to immediately turn against Joanie and send her back to her birth parents. Joanna also resents Joanie for living the life that should have been hers. At this time, Laurent, through a paternity test from years ago, locates Joanie and arrives at the Francis household, bringing a billion-dollar investment project. However, due to a series of misunderstandings, Laurent mistakenly believes Joanna is his childhood friend Joanie.

After being taken back from the orphanage, Yvette Jones longed for familial love, but due to her parents' and siblings' bias and prejudice, she was neglected and isolated at home, leading to a stomach illness. Her foster sister Sienna replaced her medication with vitamins, causing Yvette's condition to deteriorate into stomach cancer, while the family believed Sienna and thought Yvette was pretending to have a terminal illness just to gain sympathy. Ultimately, Yvette was framed by Sienna, kicked out of the house, and brutally killed. In her last moments, she met Jared, the only person who extended a helping hand to her in this life. In her second life, Yvette quickly severed ties with her family and focused on herself. To repay Jared for his help in her previous life, Yvette utilized her advantages from her previous life and her own talents to create a medical company with Jared and her friend, ultimately swallowing the Jones family business and making Sienna pay for her misdeeds. In the end, Yvette successfully avenged herself and lived a happy life with Jared.

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.