cast of my sister's deadly secret

An influencer struggling for more followers, and a handsome man with a mysterious history. Blood coming out of water taps, stumping footsteps in the hall... They sound like weird, spooky phenomena in a creepy hotel. But it doesn’t take long to discover that they are all connected, and leading to a dark secret hidden behind every closed door and buried underneath the quiet bricks and concrete. They could be nothing more than rumors, but only one way to find out.

Chris Packett and his family have crossed over from the Immortal Realms to the modern world. His mother, once an Archlord in the Immortal Realms, has become the mayor of a city. His father, formerly a master of alchemy, is now passionate about technological research. His elder sister has become an actress, specializing in fantasy dramas with an uncanny sense of realism.Chris is the most laid-back of them all. He was once dragged out of his idle life by his mother to save the country during a crisis. Eventually, she forces him to join a tech company, posing as an ordinary employee to protect the CEO lady.However, things take a turn when Chris accidentally adds the CEO, Leona, to the family group chat. Leona believes Chris is just a regular guy and assumes his family's messages are full of exaggerations. In the end, she discovers that every member of Chris's family is a hidden powerhouse.

The youngest female investor on Finance District refuses an arranged marriage with the Golden family. After a drunken night and being drugged, she's saved by her secret admirer and actual fiance, Keir Golden. He pretends to be a poor sugar baby, letting Clara "keep" him. A year later, when family business troubles force Clara to accept the arranged marriage, she tries to break it off with Keir, only to discover her sugar baby is actually her powerful fiance who saves her from the scheming McDowell family.

For Christmas, Harvey Bailey, a humble construction worker, agreed to a flash marriage with his boss, Ember, to ditch her arrogant, wealthy fiancé. But when her family mocked his poverty, his own parents' shocking secret erupted: their "farmhouse" was a vault of priceless artifacts, and Harvey was the hidden heir to a billion-dollar empire. Beginning this Christmas, the humble construction worker will transform into the sole heir of a commercial empire.

Lowell, the CEO of Wonder Group, gave up his career and walked away from everything for love—marrying Lillian. For years, he believed he had found happiness. But everything changed when Lillian's first love, Karl Scott, returned to their hometown. The moment they reunited, old feelings quickly reignited, and before long, the two were entangled in a secret affair. To make matters worse, even Lowell and Lillian's son began growing closer to Karl, treating him like more of a father than Lowell himself. Faced with his wife's betrayal and his son's rejection, Lowell endured the pain in silence—again and again. But eventually, something in him broke. Tired of being taken for granted, he made a decision: he would end the marriage and reclaim everything that was rightfully his. In the end, when Lowell revealed his true, wealthy background and calmly filed for divorce, Lillian was left in shock—and full of regret.

Evelyn Summers is a formidable, self-made businesswoman who spent a decade building both her empire and her marriage alongside her husband, Aaron Quinn. From a modest street food stall to a publicly listed corporation, they rose together, and Evelyn took pride in what she believed was an unbreakable partnership founded on love and trust.That illusion shatters when she uncovers a devastating truth. Aaron had orchestrated a car accident that caused Evelyn to lose their child at eight months pregnant, leaving her unable to conceive again. Even more cruelly, he had been carrying on a secret affair with her younger sister, Natalie Summers. The life Evelyn cherished, her marriage, her family, her past, was nothing more than a web of lies carefully spun around her.Refusing to be broken, Evelyn fights back. She removes Aaron from his position as chairman and casts him out with nothing to his name. As the truth comes to light, Aaron spirals into madness and is confined to a psychiatric institution, while Natalie, the true mastermind behind the deadly plot, is brought to justice and sent to prison.Rising from the wreckage of betrayal and loss, Evelyn reclaims her power, her future, and her crown, proving that a queen is not destroyed by ruins, but crowned upon them.

Keith's daughter had a lifelong strawberry allergy. After eating a cookie with hidden strawberry ingredients, she died from an allergic reaction.Keith,already battling cancer, found out his wife Hollie was the one who gave her the cookie. To spare her the guilt, he took the blame. But Hollie,believing he killed their daughter, resented him deeply and made him suffer. Only as Keith lay dying did she learn the truth—too late to make things right.

Three years ago, to repay Sara Crane's father for saving his life, Ian Griffin married into the Crane family. He secretly helped the Cranes reach a higher standing in society so that they would one day learn his true identity. Three years later, after making his last delivery for the day, he coincidentally saves Stella Wade, the Queen of Commerce, who was attacked by Estrya Assassins. After instructing his subordinate to handle the aftermath, he hastily leaves. Little does he know, Stella has fallen for him at first sight and wants to offer herself to him, along with Nimbus Group, which she has been managing for years.

The richest man, Lorren Quinn, saved the chief attendant, Maggie Lawson, from being harassed by the general manager of Boker Airlines. After the emergency landing, Maggie asked Lorren to pretend to be her boyfriend, but was misunderstood by Lorren's son, Harley. After several incidents, the misunderstanding between Lorren and Harley was cleared up. Lorren finally won over the support of Maggie's parents and was together with Maggie.

The world's top mercenary, Paul Wood, believed money could solve anything. An assassin from the top ten assassin list? With more payment, he could wipe out all ten of them. The top assassin was Green Onion Hater? With more payment, anyone who hates green onions would become his enemy. While Paul was on a mission, disguised as a delivery guy, he ran into Kelly Josh, who insisted that Paul used to be her classmate and bully her. But Paul didn't even know her! "Lady, please have some self-respect. I only do delivery."

Falsely accused of stealing a jade pendant and humiliated in his divorce, Curtis's life took a dramatic turn when wealthy Sullivan searched for his long-lost son, with the pendant as the key clue. Meanwhile, Willene, drawn to Curtis's mysterious ties to a powerful family, pursued him. At a bar, Curtis's singing captivated the audience, but his ex-wife, Xamira, sabotaged his performance and was later exposed for her infidelity. When Curtis's true identity was revealed, Xamira attempted to win him back, but he chose to marry Willene. During their wedding, Xamira sacrificed herself to save Willene, dying in Curtis's arms.

Top engineer and designer Edwin Stanford learns his son Mason has been framed by wealthy businessman Robert Jasper and imprisoned in “Bridgewell Prison”—a facility Edwin himself designed. To save his son, he endures humiliation and enters the prison as an inmate. Inside, he uses his intelligence to gain the trust of crime boss Dave while secretly leveraging his intimate knowledge of the prison’s structure to execute his plan. He must not only break his son out of this steel cage but also exploit Robert’s greed and paranoia to set the ultimate trap—turning this symbol of absolute control into the judge’s own tomb. This is a father’s revenge executed through knowledge and patience, the ultimate counterattack against evil and betrayal.

Lucine and her husband, Cheney, were in a devastating car accident that took Cheney's life. Lucine survived but lost her memory. When the powerful Sterling family learned she was carrying Cheney's only child, they sent his twin brother, Noah, to bring her home and ensure her safety. At first, Noah saw it as a duty, but as he cared for the vulnerable and lost Lucine, an unexpected bond began to form. Amidst fierce family struggles, kidnappings, a heartbreaking miscarriage scare, and ruthless outside schemes, their connection deepened—until neither could deny the pull between them.

Dakota is Gabriella Lowery's only daughter, cherished since childhood, who later marries Chase Boone and moves far away. After marriage, Chase neglects the family and has an affair. Although Dakota suffers, she never complains to her mother. At her child's one-month celebration, Dakota hopes for her mother to attend, only to discover that everyone believes Gabriella has passed away and has kept this from her. Dakota refuses to believe it and argues with the Boone family. Years of unhappiness make her consider divorce, but Chase is unwilling. At this point, Gabriella arrives and, seeing her daughter's thin appearance, blames Chase. Still, she is willing to give him another chance. Unfortunately, the rift in Dakota and Chase's relationship is beyond repair. Dakota decides to divorce, and Gabriella supports her. Chase recognizes his mistakes, chooses to let her go, and expresses his intention to change, waiting for Dakota to return.

After a car accident and plastic surgery, a part-time worker wakes up with the face of a wealthy heiress. Living someone else's life, she seizes the chance to get revenge on the man who ruined her. But as she gets tangled with the heiress’s fiancé, an unexpected romance blooms—and so does the question: how far will she go to keep this borrowed life?

The princeling of Lonbardie, Chuck, made a bet with his friends that he would win over a working girl named Wendy within a month. To test Wendy's sincerity, he pretended to be a brain tumor patient to deceive her. Wendy worked eight jobs a day to earn money for her boyfriend's treatment. However, one day while Wendy was working at a KTV, she happened to encounter Chuck celebrating his birthday and revealed the details of his masquerade of being poor and sick to his friends. Wendy stood in the corner, greatly shocked.

Five years ago, Mark Steele embezzled company funds for stock trading and lost everything. To protect his daughter Ariel, he begged his son-in-law Sean Grant to take the fall, promising to give him company shares in return.For Ariel's sake, Sean agreed.Now, five years later, Sean is released from prison—only to discover he is in the late stages of cancer.

Neil Bradford ran away from home to pursue and marry his girlfriend,Sophie Perez. However, things took a dark turn when Sophie accidentally hit Neil's mother with her car and fled the scene. In order to save his mother, Neil was forced to accept harsh conditions. After uncovering the truth, he brought Sophie and her best friend Lily to justice. In the end, Neil inherited the family business and freed himself from the bonds of love.