

Five years ago, Charlotte Shaw, under the provocation of Eve Smith, had no choice but to break up with Yale Ball who was down and out by then. Soon after this break-up, Charlotte lost her memory and gave birth to her child with Yale later. Five years later, Yale returned to his motherland as the No. 1 rich person nationwide. Fate also brought him to Charlotte who was at the lowest point of her life. Somehow, their destines tangled together and composited a music full of twists and turns.

For seven long years, Yvan Groove has cared for his wife Jenny Stones—who fell into a vegetative state after an accident—and their daughter, Nancy. (Unbeknownst to him, his wife is actually Rose Shaw, the missing daughter of the influential Shaw family.) To pay mounting medical bills, he has endured countless hardships. When local hospitals prove unable to treat her, Yvan takes his wife and daughter to Jensire in search of better care. By a twist of fate, he finds work at the mansion of Barry Shaw, the head of the Shaw family. Ravaged by guilt over Rose's disappearance seven years ago, Barry has lived alone in the vast villa ever since. The moment he lays eyes on lNancy, he is stunned because she looks exactly like Rose as a child.

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.

A long-planned conspiracy, a life that is switched. Charlotte Barlow, the daughter of the wealthy Goodman family, is swapped at birth by the maid Danielle Fuller with her own daughter. Overnight, Charlotte Barlow, who should have been the family's pride and joy, is reduced to a servant's daughter and suffers constant abuse. Meanwhile, Stella Goodman, who should have lived in poverty, becomes the pampered heiress. By chance, Charlotte saves her birth mother, Britney Goodman, and is brought into the Goodman family. Fearing the truth would be exposed, Danielle, who works as Britney's maid, schemes to frame Charlotte, causing her to be wrongfully accused. Stella, who accidentally discovers she is the "fake heiress", also fears her true identity would be revealed. The two conspire with Jordan Goodman, Britney's live-in husband, to poison Britney while repeatedly framing Charlotte, causing her birth mother to misunderstand her! Fortunately, Lionel Goodman, the family's adopted son, helps Charlotte uncover the truth. The two fall in love as they get to know each other and provide mutual comfort and support.

College student Charlotte Sharp encountered with Ryan Church, a successful older man. After a night of unexpected passion, Ryan developed feelings for her and helped with her troubled family. When Charlotte was humiliated on a blind date, Ryan stepped in to protect her. As their bond deepened, Charlotte discovered Ryan's deep affection and responsibility. Despite the challenges of her secret pregnancy and family debt, Ryan remained by her side. Their love strengthened through these trials, culminating in a romantic wedding that proves their unbreakable bond.

Ji-Yeon, the wanna-be among the theater majors at school, dreams of a bright future after being cast in a famous director's work. However, her life shatters when her best friend Yu-Mi spreads a deepfake video of Ji-Yeon having an intercourse with Professor Park, and on top of that, has an affair with Geon-Woo, Ji-Yeon's boyfriend. Determined for revenge, Ji-Yeon teams up with the teaching assistant Su-Ho, who exposes Yu-Mi's true identity to her.

Maya Thornton, the Marquis Valen, is reborn six years after her death. Six years ago,moments after giving birth, she was murdered by her husband and his mistress while lying weak and vulnerable. Now, she wakes in the body of Talia York, a delicate and vain daughter of a military household. The original Talia has betrayed her fiancé, Tristan Wren, the Deputy Commander of the Regal Army, and become entangled with a frivolous young man. With her soul now in Talia's body, Maya secretly follows Tristan to the military camp while disguising herself as a man. There, on the very training grounds she once commanded in her past life, she throws herself into grueling training. She is determined to reclaim her martial prowess and returns to the capital to take her revenge and once again protect the realm.

General Henry Nolan is bestowed the title of the North Lord, adorned with the regal ceremonial robe and the legendary Dragon Sword of Astil. Yet, his ascendancy is overshadowed by betrayal from within, leaving him with a shattered mind and crippled legs, while his wife, Jean Shaw, becomes the subject of scorn and ridicule. Young scion Alex Cook, captivated by the allure of Jean’s beauty, seeks to claim her for his own and inflicts a grievous blow upon Henry. However, in an unexpected turn of events, this act triggers a resurgence of Henry’s faculties. From the depths of despair to the pinnacle of power, Henry’s journey, marked by unwavering resolve and unyielding determination, sees him emerge from the shadows with the unwavering support of Jean and her allies. Inspired by his wife's unwavering protection over the years, he vows to safeguard her for all eternity.

Livia and Owen were childhood sweethearts. Right before their wedding, Owen died saving her. Consumed by guilt, Livia prayed to God, promising to perform one hundred tasks for the wealthy heir Cassian in exchange for Owen's life. For five years, Cassian, obsessed with his "love" Charlotte, has watched Livia being humiliated and bleeding for Charlotte. He even asked her to donate her heart. When the truth is revealed – that Livia was the one who saved Cassian – and she prepares to leave, Cassian is shattered by remorse and begins a frantic chase to win her back. But Livia is now focused on helping Owen regain his memories. What choice will she make?