

Flora Belle, the eldest daughter of the Belle family, is a gifted physicist whose future shatters when her sister commits murder. To protect the family, she takes the blame and spends five years in a juvenile center. After returning home, she is met with cold rejection. Her sister steals her boyfriend, Henry Woods, leaving her heartbroken. She then focuses on rebuilding herself through science. Soon, the truth emerges—she was the one who once saved him, while her sister deceives everyone. Henry is left drowning in regret.

Yu-Jin was murdered by her husband Chan-Yeong and his mistress Na Ju-Hui. Shortly after, her sister Yu-Ri is also killed and finds herself back in time before Yujin and Chan-Yeong's wedding. Determined to take revenge for her sister, Yu-Ri decides to marry Chan-Yeong. Just then, her first love Tae-O reappears before her.

Woo-Yeon, a second-generation chaebol, starts an internship at her father's company, where she works with Jae-Hwan, a notoriously prickly but highly capable and sexy boss. She soon discovers that Jae-Hwan’s wife, Ji-Su, was the one who bullied her in the past. Determined to get revenge, Woo-Yeon decides to make Jae-Hwan her own man.

On the wedding day, the career-driven businesswoman Eloise discovered that her groom Eugene was having an affair with her cousin Vicki. She decisively exposed their scandal at the wedding scene. However, Eugene and Eloise's relatives became furious and shifted all the blame onto Eloise for being devoted to her work and unwilling to be a homemaker. Eloise was infuriated by their shamelessness and, at the wedding, declared that she would hire a husband with a high salary, thinking it was just an impulsive act of venting her frustration. But Alphonse, the CEO of Blossom Group, raised his hand and expressed his desire to become Eloise's husband. Eloise was very surprised but didn't think much of it, believing Alphonse was just a cash-strapped hotel worker. Thus, the two ended up having a spontaneous marriage. What kind of sparks would fly between them next?

Out of desperation, Queenie Xavier sells her first night to Yarden Lewis, the man she's secretly loved for eight years. Yarden enjoys the thrill but keeps her as a secret lover, never imagining it could last. She feels the same. When the time comes, she walks away.Only then does Yarden realize he's been in love with her to the very core all along.

Amelia Russo has loved Shawn Butler for many years, but his heart remains steadfast in its longing for his first love. Determined, Amelia gracefully steps aside to make room for that woman.Shawn deludes into believing his happiness lies in Amelia's absence and jolts by an unexpected revelation upon receiving her medical card. "Shawn Butler, as the final days of my life trickle away, I no longer choose to waste my love on you."

Amy Dole finds herself in the operating theatre, pressured by her boyfriend to undergo an abortion. Promising a fresh start afterwards, he leaves her feeling cornered. In a desperate moment, Amy flees towards the window and leaps out, only to unexpectedly encounter her child's biological father. And that marks the start of a romantic tale brimming with love and animosity.

Lena, a dedicated and bookish student, is cruelly dumped by her boyfriend Ryan, who mocks her as a boring, unattractive nerd. Heartbroken and humiliated, she drowns her sorrows at a bar, where she meets the charming and handsome Adrian. One impulsive night leads to a passionate encounter. To Lena's shock, she later discovers that Adrian is none other than Ryan's father. What began as a moment of reckless escape becomes the start of an impossible entanglement that will turn all their lives upside down.

When Beth Stone returns to the country, she unexpectedly spends the night with her nemesis, Colin Moore. Outwardly, they are consumed by hatred for each other, but deep down, in a place no one else can see, love quietly lingers.

Yeon-Woo, the heir of the organization Sipgangpa, disguises herself as a boy to infiltrate an all-boys school and eliminate the heir of the rival organization Makgangpa. However, as she catches the attention of a handsome trio, romance begins to blossom in her used-to-be noir life. One of the three is apparently the heir of Makgangpa—will Yeon-Woo be able to complete her mission without falling in love?