when does katherine show up in season 1

Six years ago, due to the manipulations of Yvan Leonard's mother, Sheila Solley was forced to break up with him—only to later discover she was pregnant. She secretly gave birth to their child, naming him Lennox Solley, but passed away when Lennox turned five.Left without his mother, Lennox took a photo of Yvan and a love token, and with his loyal dog by his side, wandered hundreds of miles alone to find his father. Yet Yvan,unaware of the truth behind their past, refuses to believe Lennox is his son.

Roxanne Hill, the heiress of the Hills and a Muse Award gold prize winner, gave up on her dream for the sake of her husband, settling down as a housewife for five years. She believed she would live a blissful life, but tragedy struck when she lost her unborn child due to her sister-in-law's treachery. To make matters worse, her husband chose to save the sister-in-law instead of rushing Roxanne to the hospital. Their relationship begins to crumble, while the art world eagerly awaits the return of the renowned artist.

Modern-day gamer Leo Kane dies suddenly after an all-night gaming session and wakes up in another world as Grecan's most feared assassin, Cipher. Upon awakening, he's hired by Imperial Guard officer Hugo Spence to kill a woman named Lady Brooks. Intending to take the money and slack off, Leo's plan collapses when he's captured by his target, Poppy Brooks, who discovers his assassination mission. After Leo bravely drives off a group of bandits, Poppy's view of him changes. When she later learns that Leo once saved her life, their relationship begins to thaw, sparking a bond neither expected in a world built on blades and secrets...

Tyrone grew up under the strict control of his wealthy parents, making him feel like a neglected child. Determined to prove himself, he worked tirelessly to meet the unreasonable demands of his girlfriend, Nina. But Nina abandoned him for Fred, using her new lover's connections to land a job at Rivertown's top company, Celestria Group. Meanwhile, Tyrone earned his way into this company through hard work. On his first day, Tyrone faced hostility from Fred and Nina. But fate intervened when he saved Fiona's grandmother—an act that led to a fake marriage with Fiona, Celestria's powerful CEO. Over time, she grew to love him and stood up for him against Nina's schemes. Later, Tyrone's father revealed their family's own elite status, but Tyrone remained unfazed. He had already learned the most important lesson: true love isn't about wealth or status—it's built on self-respect and genuine connection.

Iris Glass's mother was killed by Duane Fowler, the underground crime boss of M City, when Iris was young. Determined to seek revenge, Iris grows up to become a special operations unit leader. She infiltrates the inner circle of Athos Fowler, the crime boss's son, for three years. On their wedding day, the special ops team launches an arrest operation. In a moment of crisis, Athos attempts to escape with his lover, only to be shot by Iris and captured. When they meet again, will the prey escape, or will the hunter begin a new round of pursuit? After numerous challenges and tests, Iris comes to recognize Athos's genuine feelings beneath his domineering exterior and gradually opens her heart to him. Athos's relentless pursuit of her pays off, and his punishment is reduced for his assistance in dismantling the underground forces.

In her previous life, Maggie Lopez was framed by her boyfriend, Jeffrey Harris, and her stepsister,Chelsea Lopez, and was put in jail. After Maggie got out of jail, her mom had already passed away. Finding out the truth about everything, Mandy chose to kill Chelsea and die with Chelsea and Jeffrey. When Mandy woke up again, she found she was back to the day she was framed for committing murder in her previous life.The next moment, she decided to get into the next room and use him as an alibi.

Dante Wood finds himself trapped in an infinite loop on his birthday, repeatedly shot dead by a killer wearing a clown mask in a toilet cubicle. He jolts awake on a couch and initially believes it was a nightmare. When he enters the toilet the second time, his subconscious warns him of impending danger—but the killer strikes again. By the third revival, Dante finally catches on—the only way to break free of this deadly loop is to get away from the killer. As he and Shelby Morris attempt to escape by car, a speeding truck crushes them both. When he wakes up from death for the fourth time, Dante resolves to investigate every clue. During a scuffle between Shelby and Ryan Patel, a clown mask falls out of Ryan's bag... With each rebirth, Dante pieces together more fragments of the puzzle, inching closer to the truth.

Andrew Evans had a strange disease. Each time the disease attack occurred, he couldn't breathe and move his body. During an onset of the disease in a bar, a girl stumbled to his side and the two had their one-night stand affected by alcohol. When Andrew woke up, he found his condition had improved a lot and he knew it was because of the girl. He couldn't remember her face, but he found a jade pendant she dropped at the bar. Then Andrew sent his assistant to look for its owner. The girl has just returned home when she saw her mother standing upstairs. Just as the girl explaining what happened earlier, someone suddenly pushed her mom. The girl watched her mother fall off and die, leaving a pool of blood...

In her past life, Vivian Walker forced Isaac Lowe to marry her, only to live in loneliness and regret. On her deathbed, deceived by Isaac's first love, Gigi Smith, she died believing he had never cared for her.But when Vivian opens her eyes again, she's back forty years in the past—right at the moment she threw away her future for Isaac. This time, she doesn't think twice. With a deep breath, she tears up the withdrawal form, choosing herself and the life she deserves.

Ice-cold CEO Maddison Perkins adopts a gifted little boy named Arthur to safeguard her family's company. At just six years old, Arthur is not only a child prodigy with incredible strength, but also fiercely protective of his mom. Time and again, he steps in to defuse crises—and in doing so, chips away at Maddison's guarded heart with his boundless love and warmth. When Uncle Brendon makes move after move to bring them down, Maddison and Arthur team up,outsmarting him at every turn to protect what's rightfully theirs.

Alvin Kirkland and Nahla Snider had been inseparable since they were kids. Twenty years of shared memories, inside jokes, and a promise to get engaged on his 25th birthday. But when the day finally came, Alvin walked in on Nahla taking couple-y pics with Jared Whitehead, some underclassman from college. She brushed it off like it was no big deal, kept making excuses for Jared, and expected Alvin to just deal with it. Fed up with her gaslighting, he left a breakup note, packed his bags, and took that overseas job offer without looking back.

Three months into her marriage with Xavier Hudson, the heir to a notorious gang family, Quinn Shelton is hit by tragedy when Xavier dies in a fatal car accident. At Xavier's funeral, factions within the Hudson family demand Quinn give up control of the family legacy. The unexpected return of Samuel, the second son, after years abroad, creates further discord, as some see him as a mere puppet fit to assume leadership. Surprisingly, Samuel mirrors Xavier in appearance but chooses to ally with Quinn, throwing his support behind her as she fights to retain authority.

Sierra Lowe, a genius from the future research institute, dies unexpectedly and wakes up 100 years in the past as the fiancée of Commander Ethan Nacht. Her plan is simple: lay low, earn money, and avoid trouble. And when the ninth wife finally rises to power, she’ll happily step aside. But on their wedding day, Commander Ethan hears her inner thoughts loud and clear: “So this is Ethan Nacht, the guy who secretly slept with the ninth wife?”Ethan was baffled: "Father only had eight wives. Where did the ninth come from?"

Rachel Sheldon's world was turned upside down when she was drugged and woke up in the bed of Barrett York — the most powerful man in the city. When she discovered she was pregnant, Rachel disappeared from the spotlight, determined to raise the child in secrecy. But on the very day she gave birth, Barrett found her. Fiercely independent, Rachel was unlike any woman Barrett had ever met — and he couldn't stay away. As he launched a relentless pursuit, Rachel's hidden identities were revealed one after another, each more surprising than the last. Drawn to her strength, Barrett began to fall — and so did Rachel. Slowly, she opened her heart to the man she had once tried to escape. What had begun as an accident just might have become forever.

Nancy, Aopper University's finance talent, gave up her studies to marry Leo Fay.Yet after seven years of marriage, her son's birthday wish was for a new mom. Leo's obsession with Nancy's sister cost her second child, leaving her heartbroken.Heartbroken, she left. Everyone believed she couldn't make it without Leo. But she rebuilt her empire and stayed away until their son,Mario,wanted her back. Later, when Leo finally reached out, Nancy was already holding her newborn.

Gifted with musical talent from a young age, Evelyn Pearson wins a newcomer's championship and receives a confession from her boyfriend Zac Parker. She then steps back from the spotlight to write songs for Zac's entertainment company. Later, when Zac grows tired of her and starts an affair with his new love interest Autumn Hopper, Evelyn is forced to break up with him. Having come to her senses, Evelyn decides to debut on her own merit. With Corey Simpson's help, she makes a comeback and rises to become a superstar.

In her past life, Vivian Walker forced Isaac Lowe to marry her, only to live in loneliness and regret. On her deathbed, deceived by Isaac's first love, Gigi Smith, she died believing he had never cared for her. But when Vivian opens her eyes again, she's back forty years in the past—right at the moment she threw away her future for Isaac. This time, she doesn't think twice. With a deep breath, she tears up the withdrawal form, choosing herself and the life she deserves.

Once a wealthy heiress, Stella Smith's life takes a tragic turn when her parents become comatose after an accident, and her fiancé betrays her. By a twist of fate, she is pregnant with Jay Pace's child, though she mistakenly believes the father is someone else. Years later, she returns with her child and reunites with Jay Pace as his subordinate, totally unaware that her boss is actually the father of her child. A series of misunderstandings ensue which sparks a growing affection between the two. As the misunderstanding clears up, the reunited family finds their happily ever after.