Mark Dalton engaged in charity work and financially supported Carla Fulton, who was in poverty. Carla mistakenly believed that she held a special place in Mark's heart and gradually became arrogant. Five years later, after graduating from university, Carla, in an attempt to show off, lied that Mark was her brother and brought her classmates to intern at his company. Mark, busy with the company's IPO, delegated the task of arranging the internships to his subordinates. The subordinates did not dare to stop her, allowing her to act recklessly within the company. She fired the technical team and declared herself the chairperson. When Mark was negotiating a partnership with Saturn Group, Carla's outrageous behavior caused the deal to fall through, and Mark was so furious that he fainted and was hospitalized. Carla continued her reckless actions, pushing the company to the brink of bankruptcy, and even planned to sell it. After Mark regained consciousness, he exposed her lies. Resentful, Carla teamed up with a rival company to sabotage Mark's projects. In the end, Mark uncovered the conspiracy, Carla was arrested, and the company successfully went public with the support of Saturn Group.
Jack Schulz was the biological son of Jennifer Lynn, a respected surgeon. Due to a misunderstanding with his father, Jennifer resented Jack but favored her adopted son, Matthew Zane—the child of her former lover. After Matthew hit Jack with a car, Jack suffered internal bleeding and was rushed to the hospital. Doctors repeatedly called Jennifer for consent to operate, but she refused to believe the situation.Losing hope, Jack gave up on survival. Matthew found Jack's kidney donation form and secretly changed it to authorize full organ donation. Meanwhile, Jennifer was desperately seeking a heart for Matthew. Unaware of the truth, she ended up dissecting her own son and transplanting his organs into Matthew. Though the body looked familiar, she believed Matthew—until a DNA report confirmed the donor was her real son. Only then did she realize the devastating truth.
Ellie Devin, once the cherished eldest daughter of the wealthy Wilcox family, discovers she’s actually the fourth daughter of the Devin family. Driven by blood ties, she seeks out her real brothers, only to face cold rejection. They despise her, and the adopted daughter, Fiona Devin, frames her at every turn. Instead of defending Ellie, her brothers force her to kneel in the rain, refusing to listen. Sick and drenched, she begs to be let inside, but only Fiona emerges, mocking her cruelly before pushing her down the stairs. Left abandoned overnight, Ellie wakes with a new resolve. She fights back when falsely accused again, declaring she will no longer bow to the Devin family. Stunned, they watch as she walks away. This time, Ellie is determined to reclaim her place in the Wilcox family, where she truly belongs.
Fred Wood, a retired general, takes a job as a construction site security guard while searching for Mona's real mother. When Mona uncovers a group of thieves on the site, she inadvertently wakes Fred, who scolds her in return. During a routine inspection, Mona realizes that Sally Jepsen is her mother, though Fred remains skeptical. Meanwhile, Paul Jepsen pressures Sally into marrying Tate Ward to benefit her ailing grandfather. A mix-up leads them to believe Fred and Mona are Sally's husband and daughter from seven years ago. After chasing off the intruders, Mona insists on following Sally when she tries to leave. Fred reluctantly agrees and later helps save Hugh Jepsen's life. To escape a forced marriage, Sally offers Fred a large sum to pretend to be her husband. At the banquet, Fred steps in when Paul bullies Mona, saving her from further harm in a fit of rage.
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.
Tansy West, the eldest daughter of the West family, escapes her political engagement to Edric Byrd, the eldest son of the Byrd family, by running away during the engagement party and disguising herself as a man. In her escape, Tansy accidentally becomes Edric's bodyguard. As they spend time together, they develop feelings for each other. However, Edric, originally biased against his fiancee, mistakenly believes he has fallen for his male bodyguard, causing much humorous confusion. Tansy helps Edric deal with his malicious stepmother and his scheming younger brother. She attends a gathering in her female guise, where her brother and parents recognize her. To ensure the couple's marriage proceeds smoothly, both sets of parents knock them out and send them to the wedding venue. The male lead's younger brother is captivated by Tansy's beauty and wishes to marry her himself. During another escape attempt, Tansy and Edric discover each other's true identities. Edric begins to acknowledge his feelings for Tansy, and they confess their love for each other. With her help, Edric successfully defeats his father, regains control of the Byrd Group that rightfully belongs to his mother, and lives happily ever after with Tansy.