who knows your secret kdrama

After getting married, for three years, he was mocked as a useless, dependent, penniless loser. But what they didn't know was that if he revealed his true identity, the entire world would be at his feet.

Harold and daughter Demi are critically injured in a riot,with Demi fighting for her life. When the hospital faces a Type A blood shortage, his wife Violet signs away the life-saving blood to save Jack, son of her first love Nate, who claims the boy has leukemia. She abandons her dying daughter without hesitation.Heartbroken after six years of devotion, Harold resumes his hidden identity as heir to the powerful Summit Group. He saves Demi and disappears. Finding Harold's abandoned phone filled with loving messages and final farewell, crushing regret overwhelms Violet.

Claire Gould, the heiress of a billion-dollar conglomerate, conceals her identity to repay a life-saving favor by marrying a commoner. Little did she know that after personally guiding her husband's company to become a multimillion-dollar conglomerate on the brink of going public, he callously casts her aside, opting to marry the niece of the wealthiest man in town.Post-divorce, Claire's true identity is exposed, leading to a satisfying comeuppance for the deceitful ex-husband and his conniving new wife. Despite his regret, it's too late for him to reclaim what he lost. Claire finds herself adored and cherished by three influential and eligible bachelors, leaving her ex-husband to rue the day he let go of the woman now embraced by the affections of powerful suitors.

The legendary duo chooses a quiet life, hiding their true identities to protect their daughter, Freya Lawson. But when Freya's husband betrays her, pursuing the governor's daughter and publicly humiliating her, she's left devastated. Well, what Freya doesn't realize is that her parents are far from ordinary - they are powerful forces capable of shaking the entire nation.

Yancy Shaw, the heiress of the Shaw family, was set up by Cindy and lost her memory. After getting saved by Celia, she was given a new name Miranda. In an odd coincidence, Yancy married Zack Ramsey. Cindy pretended to be Yancy and wanted to marry Zack. She tried to set Miranda up several times. In the end, Zack and Miranda teamed up to expose Cindy's crimes.

Chena's top agent, Stella Kurt, lives incognito and humbly to provide her parents with a peaceful, ordinary life. However, her selfish relatives, seeking personal gain, plan to marry her off to a local thug. Stella's parents sever their ties with these relatives in protest. Undeterred, the thug uses his influential family background to humiliate Stella’s parents and, in a horrific turn of events, kills her mother. Fueled by rage and a desire for justice, Stella sets out to confront them, determined to make them pay for the atrocities committed against her family.

Graysen Grimes is consumed by grief over his late wife, leading the family nanny, Caitlin, to believe she'll become the next Mrs. Grimes. While Graysen is away, Caitlin moves her relatives into the mansion. She seizes control of Graysen Group, running the company into the ground. When Graysen discovers the betrayal, the shock makes him collapse—he's hospitalized. While he's unconscious, Caitlin even kidnaps his only daughter Janessa... After regaining consciousness, Graysen exposes Caitlin's deception. In retaliation, she secretly works with rival corporations to sabotage his business. In the end, justice prevails—Caitlin lands in prison while Graysen Group makes a triumphant IPO.

A successful, savvy CEO is betrayed by her fiancé, who cheats with another woman. Discovering the affair before her wedding, she boldly marries a seemingly ordinary waiter in front of stunned guests. Unbeknownst to all, the 'waiter' is actually a powerful CEO incognito, who quietly supports her through her company's crises, proving that her lost love has been beside her all along. Through trials, they rediscover trust and love, ready to face the future together.

Just back from abroad, Thalia Prince receives a marriage certificate from her mother—tying her to a man rumored to have a terrible reputation. Determined to secure a quick divorce, she impulsively spends the night with a supposed escort, only to discover that he is actually her husband…

While sweeping the streets, cleaner Carleigh Quinn encounters Roderick Sawyer stepping out of a luxury car. He hands her a bank card, explaining he's terminally ill and wants to help her. Surprisingly, Carleigh claims she can cure him, but three renowned doctors accuse her of being a fraud. When Roderick suddenly collapses, everyone rushes to his home where the doctors admit only the legendary "Sovereign of Scales" could save him. Carleigh reveals herself as this mystical healer with mastery across dozens of fields, cures Roderick, and leaves. Later, her fiance Kieran Harrell delivers divorce papers, and at their wedding, publicly abandons her to marry Aurora Quinn instead. Roderick arrives with a marriage proposal, announcing to everyone's shock that Carleigh is the revered Sovereign of Scales.

Jason, the Great Warrior in Shanor, had retreated into a life as a fishmonger after his wife was brutally murdered. Fifteen years later, his daughter Stella was abducted, prompting him to embark on a journey to find her. Crushing criminal organizations led by Austin, he unraveled the Four Families' tangled feuds in Southland. Ultimately, he rescued his daughter, exposed the conspiracy, and returned to a peaceful life.

After being dumped by his accomplished girlfriend, Fabian Quinn, a modest fishmonger, stumbles upon a life-altering revelation—he has five extraordinary sisters. His eldest sister reigns as the billionaire president of Quinn Holdings, the second is a globally adored actress, the third leads the world's deadliest assassin organization, the fourth holds a formidable position as a general of Celestia, and the fifth is a renowned doctor. As his remorseful ex-girlfriend belatedly realizes the gravity of her mistake, she remains oblivious to the fact that Fabian's true identity far surpasses the remarkable achievements of his five exceptional sisters.

After an unexpected encounter, Adelyn slept with Trent. Adelyn intended to forget everything, but Trent re-entered her life as her fiancé's uncle. To make matters even more complicated, Adelyn discovered she was pregnant with Trent's child. This set off a tangled web of emotions, leading them both into a passionate and reckless love affair.

At 25, Ariel Laurel is a brilliant lawyer and PhD candidate—but secretly, she’s also a world MMA champion. A blind date leads to marriage with Eric Blaine, a renowned philanthropist. Yet beneath his charm lies a dark truth. His daughter and mother suffer in silence, while his family thrives on violence. Refusing to stand by, Ariel uses her intellect and strength to expose their sins, rescue the innocent, and fight for justice.

Lexi Jones signs up for the "Kitty LoveSim" system, a virtual romance game where completing missions earns real-world cash. All she has to do is finish the final task to cash out and exit the game. Committed to doing the job right, Lexi unexpectedly ends up marrying Scott Fuller—the heir to the Fuller empire. What starts as a mission quickly spirals into a wild ride full of awkward laughs, unexpected tenderness,and genuine connection. By the end, Lexi walks away with both the grand prize and a love she never saw coming.

Ann Hale, a 30-year-old woman, worked hard to fund her boyfriend's tuition fees. However, as soon as her boyfriend graduated, he mercilessly dumped her, clinging to a wealthy heiress. He even insulted her by saying that no one would want an older woman as their girlfriend. In a surprising twist of events, Ann crosses paths with a billionaire in disguise. As they get to know each other better, they gradually fall in love and become a married couple. When Ann meets her despicable ex-boyfriend again, he is still a lowly worker, while she has become the prestigious CEO's wife.

Despite the failure of Maya Rogers' blind date, fate led her to encounter someone she initially believed to be the CEO's chauffeur. Following a spontaneous marriage, she watched as numerous property deeds and lavish jewelry worth millions were delivered to her doorstep. It was in that moment of opulence that she discovered the undeniable truth—her husband was none other than the billionaire CEO!

Mark Cowell, an ordinary office worker, was lured into an underground billiards scam and lost his entire fortune, even mortgaging their home. His wife Celine discovered the setup and decided to take revenge herself. Posing as a beginner,she returned to the den, winning game after game with ""beginner's luck""—until the stakes soared.Celine then revealed her true skills, attracting the attention of the mastermind—Lucy, her own younger sister and the underground billiards queen. Fueled by jealousy over Celine's past as a three-time world champion, Lucy had set the trap to drag her back into the game.A high-stakes showdown began, with life-altering wagers. At the climax, Mark revealed he was an undercover cop. Celine defeated Lucy with her blindfolded technique, and police raided the den. The couple reclaimed their home and peace, while Lucy was brought to justice.