I’ll Marry Your Brother is a romance webtoon where betrayal, second chances, and power struggles collide. The story follows Yeojin Yun, a woman trapped in a loveless marriage with Jihan Seo, a husband who cheats, lies, and even sells off her family’s company. Just when life seems unbearable, an accident sends her back five years to her wedding day, giving her the chance to rewrite her fate. In, I’ll Marry Your Brother Chapter 1-6, Yeojin refuses to marry Jihan, mourns her grandfather’s death, and vows to protect Double U Group from greedy hands. She crosses paths with Seorin, the mistress-turned-anchor. And reunites with Jaeha Seo, Jihan’s older brother, and a hidden power player. With boldness, she even proposes marriage to Jaeha, setting the stage for revenge, corporate warfare, and an unexpected romance.
I’ll Marry Your Brother Chapter 1: A Wedding Day Do-Over
I’ll Marry Your Brother Chapter 1 begins with Yeojin Yun, the unlucky daughter-in-law of the powerful Hojin family, pulling her elder brother-in-law, Jaeha, aside for a shocking proposal: “Please marry me.” The bold request sets the stage, but to understand why she would say something so out of nowhere, we need to rewind to her messy past.
For five long years, Yeojin was trapped in a toxic marriage with Jihan Seo. Her husband, who treated betrayal like a hobby. He sold off her family’s company, crushed her spirit. But he did not stop there. To top it off, he carried on an affair with Seorin Chae. The final insult? Seorin was pregnant with Jihan’s child. Left devastated and humiliated, Yeojin felt like her life had hit rock bottom.
But fate decided to add some chaos. As Yeojin was walking down the streets, weighed down by heartbreak, she accidentally stepped into the path of a car. Turns out, the driver was none other than Jihan’s shady errand boy. Knocked unconscious, she expected darkness. But when she opened her eyes, she was not lying in a hospital bed. Instead, she was dressed in a white gown, staring at herself in the mirror. It was May 28th, her wedding day from five years ago!
The Bride Who Said No
Completely shaken, Yeojin tried to make sense of her bizarre second chance. But things only got worse when she literally ran into Jihan. Right there, in full bridal attire, she spotted a lipstick stain on his collar. His excuse? A clumsy lie. And just a few steps away stood Seorin, the supposed mistress, confirming what Yeojin had not wanted to believe. They had been cheating on her from the very start.
With the ugly truth flashing before her eyes, Yeojin realized she was not about to repeat history. As the wedding march played and everyone waited for her to seal her doomed future, she gathered her courage and stopped the ceremony cold with a firm declaration: “I can’t marry him.”
I’ll Marry Your Brother Chapter 1 ends with Yeojin finally breaking free from the nightmare before it even begins.
I’ll Marry Your Brother Chapter 2: Breaking Ties, Building Resolve
I’ll Marry Your Brother Chapter 2 begins with Yeojin walking out of her wedding, leaving the entire hall in stunned silence. Reporters scrambled to capture the shocking scene, turning it into front-page news overnight. As chaos unfolded behind her, Yeojin ignored Jihan chasing after her and instead rushed straight to the hospital. There, she received heartbreaking news: her beloved grandfather, the chairman, had passed away. With her parents gone and now her grandfather too, Yeojin broke down in tears, mourning the last pillar of her family.
But grief quickly turned to determination. She remembered her grandfather’s legacy: Double U, one of the nation’s top five financial firms. In her past life, she had foolishly trusted Jihan when he promised to “help” manage the company. That trust cost her everything, as Jihan, the Hojin family’s second son and heir, rushed in and used her vulnerability to his advantage. This time, Yeojin swore she would not hand him the keys to her future.
As she prepared for the funeral, her mind was already strategizing. She instructed Mr. Park to arrange an emergency shareholder meeting and even dig up dirt on Jihan’s shady dealings. Mr. Park was stunned by her sudden decisiveness. Even more so, when Yeojin firmly announced she would not marry Jihan this time around.
Funeral and a Fierce Comeback
At the funeral, another key figure made his appearance, Yeong Min Kim, the vice chairman of Double U Group. In Yeojin’s previous life, he had been important in helping and carrying out the merger with the Hojin family, knowingly serving Jihan’s schemes. But in this life, Yeojin planned to keep herself far from his and Jihan’s influence.
Outside the funeral hall, Yeojin confronted Jihan directly. She told him in clear, certain terms that they were strangers now, and she wanted nothing to do with him. Frustrated and desperate, Jihan tried to pull her back, insisting, “You need me. I will take good care of you.” But Yeojin, with newfound clarity, was not buying into his false promises this time. I’ll Marry Your Brother Chapter 2 ends with Yeojin standing firm, ready to rewrite her fate and protect her grandfather’s legacy from Jihan’s grasp.
I’ll Marry Your Brother Chapter 3: The Return of the Forgotten Heir
I’ll Marry Your Brother Chapter 3 begins with Yeojin and Jihan still caught in their heated argument. Just then, Jihan’s phone rings. Yeojin, recalling her past life, remembers how he had once walked out on her during the funeral because of that very call. Determined to test him, she urges him to answer it. Sure enough, Jihan lowers his voice to a whisper. And she immediately recognizes who it is. Seorin Chae. Once again, he chooses his mistress over her, leaving Yeojin abandoned and aching with betrayal.
That night, overwhelmed by grief, Yeojin wept before her grandfather’s funeral portrait, blaming herself for failing him and her family. Exhausted, she eventually drifted into sleep, only to wake later and find a jacket draped over her shoulders. Surprised by the unexpected kindness, she checked the jacket and froze when she spotted a passport tucked inside. The name read: Jaeha Seo.
Yeojin was stunned. Jaeha, Jihan’s older brother, had returned to Korea without anyone knowing. Outside in his car, Jaeha casually realized he had left his passport behind, unaware of the storm it had stirred inside Yeojin. Memories came flooding back, how she had once been destined to marry Jaeha instead of Jihan. The elders of both families had arranged it from her birth, expecting Jaeha, the rightful heir, to take her hand. But Jaeha had refused, unwilling to be controlled by family politics. Threatened and cornered, he chose to walk away, leaving for America.
Past and a New Possibility
In the years that followed, Jaeha built an empire of his own. He took over H Media Holdings and turned KBC Broadcasting Station into a powerhouse, all while plotting to outshine and eventually devour the Hojin family business. Now, with him back in Korea, Yeojin’s mind sparked with a daring idea.
Determined, she ran outside in search of him. And there, standing under the night sky, she caught the familiar scent of citrus lingering in the air. The scent that marked Jaeha Seo. I’ll Marry Your Brother Chapter 3 ends with Yeojin face-to-face with the man who might just change the course of her destiny.
I’ll Marry Your Brother Chapter 4: The Perfume of Betrayal
I’ll Marry Your Brother Chapter 4 begins with Yeojin finally speaking face-to-face with Jaeha. Calm and composed as always, he tells her that no one knows he has returned to Korea; if not for his forgotten passport, she would not have discovered it either. Concern flickers in his voice as he asks if she is alright, but Yeojin holds back her tears, not wanting to appear weak in front of him. Before leaving, Jaeha gives her a quiet warning: do not trust Jihan too much and take care of herself.
Moments later, Yeojin receives a notification about the upcoming shareholder meeting, a crucial event she must take control of. Determined, she runs after Jaeha, asking to meet and talk privately later.
The next day, she meets Mr. Park, who reminds her that she cannot allow the shareholders to twist the company’s direction. Just then, Jihan shows up, rushing toward Yeojin and suddenly pulling her into a hug. Instead of comfort, she is hit with the sickeningly familiar scent of Seorin’s perfume. Disgusted, she shoves him away. Jihan insists he only wants to “help,” but Yeojin makes it clear that she clearly does not need him. Not anymore. She is the rightful heiress of Double U, and the company is hers to protect.
The Heiress Takes a Stand
Still, Jihan presses harder, determined to force his way into the shareholder meeting. Reluctantly, Yeojin agrees to let him come. But her eyes are already set on her own plan.
Later, she goes shopping, realizing how much of her wardrobe came from Jihan’s influence. One by one, she begins discarding the clothes tied to him, reclaiming her independence. She recalls her days as a news anchor, when she used to buy her own clothes from this very brand. Proof that she once stood tall on her own. But fate is not done testing her. In the store, she suddenly comes face-to-face with none other than Seorin Chae, now working as a KBC weather forecaster. The sight of her sends Yeojin’s anger boiling over.
I’ll Marry Your Brother Chapter 4 ends with Yeojin standing in front of the woman who helped destroy her past life, ready for a very different confrontation this time.
I’ll Marry Your Brother Chapter 5: An Offer to the Forgotten Heir
I’ll Marry Your Brother Chapter 5 begins with Yeojin piecing things together after her heated run-in with Seorin. She knows KBC’s standards. There is no way a regular reporter could leap straight into a prime weather forecaster role without powerful backing. The answer is obvious: Jihan must have pulled strings to put Seorin in that position.
Trying to keep her composure, Yeojin greets Seorin, who fidgets nervously under her gaze. When Yeojin notices the exclusive black card in Seorin’s possession, her suspicions deepen. She questions her about it, but Seorin offers no explanation. One glance at the signature, Jihan’s, and everything clicks. The clothes, the card, the job, it was all Jihan’s doing. With a bitter smile, Yeojin places the clothes back on the rack and lets Seorin leave in silence. That moment strengthens her resolve. If Seorin could crawl her way into KBC with Jihan’s help, then Yeojin could reclaim her rightful place. She decides it is finally time to return to her old profession and take her job back.
Later, Yeojin arranges a private meeting with Jaeha. He raises a brow, curious why she sought him out so suddenly. Yeojin stands tall, no longer the broken woman she once was, and replies that she is there not as Jihan’s ex-wife, but as the granddaughter of the Double U Group’s late chairman.
A Deal Sealed with a Handshake
Her mind flashes back to her previous life. On the night before her divorce trial, Jaeha had reached out to her with a call she never truly understood back then. Now she realizes, they had both needed each other, but the timing had been all wrong.
Finally, with a mix of boldness and desperation, Yeojin makes her move. Extending her hand to him, she declares that she needs a strong CEO like him by her side. More than that, she needs him. The room goes quiet as her words sink in, and Jaeha stares at her in stunned silence, unable to hide his shock at her sudden proposal. I’ll Marry Your Brother Chapter 5 ends with Yeojin’s unexpected offer hanging in the air, an alliance that could change both their lives forever.
I’ll Marry Your Brother Chapter 6: A Dangerous Proposal
I’ll Marry Your Brother Chapter 6 begins with Jaeha bursting into laughter at Yeojin’s bold marriage proposal. To him, it sounds absurd. Why would he even consider such a thing? But Yeojin remains calm, pointing out the obvious: he is not just anyone, he is the director of KBC. There is no way Chairman Seo would have let his grandson return from abroad empty-handed. In her past life, she remembers how Jaeha had restructured countless companies under the umbrella of IT H Media Holdings, proving his power and vision. This time, though, his true position is being kept carefully under wraps.
Yeojin presses on, assuring him that she can support him in ways others cannot. She challenges and asks him about his wanting to destroy Hojin, too. Once again, she asks him to consider her offer. Later that night, Jaeha returns home, unsettled by her determination. He had always thought of Yeojin as naive, yet her words keep echoing in his head. As he opens an envelope, he finds clear photos of Jihan kissing another woman. Jaeha recalls Yeojin’s insistence that she already knew of Jihan’s infidelity. His expression darkens as he makes a call, demanding to know whether his secret position at KBC has been leaked to anyone.
Back to the Newsroom
Meanwhile, Yeojin steels herself for her own battle. The next day, she heads straight to KBC, determined not to repeat her past mistake of resigning in despair. This time, she plans to fight for her rightful place as the anchor of News 9.
Meeting with the chief, Yeojin states her desire to return as the network’s leading face. But the chief hesitates, his expression uneasy. Yeojin quickly realizes why; it must have something to do with Seorin. In her heart, she knows that reclaiming her position would not be easy. It will take power, influence, and leverage, the kind that only someone like Jihan possesses. And as if on cue, Jihan strolls into the room, oozing with arrogance and confidence. Yeojin’s eyes widen in shock. Why on earth is he here? I’ll Marry Your Brother Chapter 6 ends with Yeojin face-to-face with Jihan once again, her plans suddenly thrown into unexpected turmoil.
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