Seokryu, an architect-turned-chef, and Seunghyo, an architect, are celebrating the grand opening of Seokryu’s new restaurant named Arc en Ciel, but wedding planning quickly takes over. The couple’s families, particularly their competitive mothers, clash over every detail—from the wedding date to the theme—creating chaos as usual. While the moms are locked in a heated debate, the dads sneak away for a drink, leaving the couple to manage the storm. Despite the tension, they try to keep things in control. Their love is tested as they navigate the madness, and in a quiet moment afterward, Seunghyo hints that maybe eloping isn't such a bad idea.

Seunghyo and Seokryu sit on the floor, surrounded by Lego pieces, bickering playfully over the design of their tiny Lego house. Seokryu adds a bold red block while Seunghyo insists on a more minimalist approach, but suddenly, Seokryu stops, her fingers hovering above the pieces. “Wait,” she says, her voice quieter. “Where are we even going to live after we get married?” Seunghyo blinks, realizing they’ve never discussed it. Seokryu’s expression shifts to seriousness. “I don’t want to keep living with our parents... yours is too quiet, mine’s too chaotic. I don’t want to stay forever.” Seunghyo hesitates, then suggests softly, “What if we build our own house?” Seokryu looks at him, surprised. “Our own house? But... what will our parents think?” They both sit back, the weight of the decision settling in as they realize the journey ahead will be scary, but they’ll face it side by side.

Seokryu arrives at her bridal appointment, buzzing with excitement but flustered that Seunghyo isn’t there. He insists it's bad luck to see the dress before the wedding, but offers a playful workaround. They roleplay the dresses as architectural designs, her as the passionate bride, him as the teasing architect. Each gown gets described in blueprints—ornamental columns, dramatic facades, minimalist atriums. Their banter is flirtatious and full of warmth, revealing how well they know and balance each other. Seokryu finally finds the dress, one that makes her feel grounded, seen, at home. Seunghyo, over the phone, quietly confesses she’s always belonged—with him. Just as emotions crest, her phone buzzes with unexpected news. The wedding venue has been double-booked, throwing their careful plans into chaos. As she asks Seunghyo what they’ll do now, the scene ends on uncertainty and love under pressure.

Still reeling from the call, Seokryu sits in the boutique’s changing room, quietly crying, wondering if breaking the ‘wedding dress rule’ jinxed them Seunghyo arrives moments later with snacks and a calm expression, gently reminding her that luck has nothing on them. He takes her hand, and they impulsively set out to tour alternate wedding venues that same afternoon. From a stuffy banquet hall to a venue with squeaky floors and floral wallpaper straight out of 1995, the search quickly turns chaotic. Seokryu grows increasingly frustrated, struggling to picture their future in any of the options. But Seunghyo stays steady—taking notes, asking questions, redirecting her spirals with bad jokes. She tells Seunghyo how they never imagined a wedding day back in school when she was just his best friend and he was too scared to confess his feelings. Seunghyo's eyes light up like he just got a brilliant idea.

Seunghyo excitedly suggests having the wedding in their old school’s backyard, the place where their story began, sparking nostalgia and hope. As they discuss plans with family and friends, someone casually mentions Seokryu’s previous broken engagement, implying this wedding should be low-key to avoid “another disappointment.” Seokryu hears the comment but notices Seunghyo didn’t say anything to defend or support her, making her feel exposed and vulnerable. She assumes he agrees with the hush-hush approach and isn’t fully standing by her side this time. Hurt and frustrated, Seokryu pulls away during the conversation, her silence heavy with disappointment. Seunghyo, unaware of the comment and her feelings, notices her sudden distance but misreads it as stress from wedding planning. He tries to reach out, but she avoids him, feeling he’s not the partner she needs in this moment. Tension builds as both grapple with their misunderstandings, unsure how to communicate honestly.

Seokryu woke up startled when she heard stones tapping gently against her window. Peering out, she saw Seunghyo carefully climbing the ladder like he used to when they secretly dated, his face full of concern. Once inside, he asked softly what was wrong and quickly explained that he hadn’t heard the comment that upset her—and that he would have defended her without hesitation if he had. His calm sincerity caught her off guard, and she admitted feeling like he wasn’t really on her side, that her past still cast a shadow over their present. Shaking his head, he reassured her she was the only one he wanted, promising to stand by her no matter what. She laughed softly, apologizing for misunderstanding, confessing how hard it was to let go of old wounds. Smiling warmly, Seunghyo told her to take all the time she needed and promised that if she ever wanted a bigger wedding, he’d make it happen—because their day should be theirs alone.

To shake Seokryu out of her post-venue blues, her best friend and mom plan a spontaneous girls' day. At an art gallery, she stops in front of a painting of a sun-drenched home, staring quietly. When asked what her dream wedding space looks like, she shrugs and says, “Anywhere I feel safe.” That word—safe—hangs in the air longer than intended. Her mom squeezes her hand, her friend shoots a secret thumbs-up to Seunghyo. They end the day watching the sunset, and Seokryu finally exhales. “I already chose him,” she says, half-smiling, half-scared. The day doesn’t feel like a distraction anymore—it feels like a quiet nudge toward something real. And Seokryu, without knowing it, is finally ready.

Seunghyo escapes the wedding chaos—dress delays, missing invites, florists ghosting—telling Seokryu he has urgent work. But he’s not at a site; he’s on the rooftop of his architecture firm, watching as it’s quietly transformed into a garden terrace wedding venue. Fairy lights are strung overhead, soft music tests play, and a small team arranges chairs and blooms. He stands still, holding a folder of magazine tears and Pinterest printouts—references Seokryu casually shared over the years. When asked why here, he says, “Because she deserves to marry in something I built—with my hands and heart.” Across town, Seokryu scrolls through texts in frustration—until one pings: “Put the dress on. Trust me.” Her breath catches. The tears stop. For the first time in days, she laughs. Whatever’s waiting, it’s his way of saying I see you.

Seokryu is led, blindfolded by her best friend, onto the rooftop terrace of Seunghyo’s architect firm. As the blindfold lifts, the golden hour light bathes the space, wildflowers and fairy lights creating an intimate, warm atmosphere. Their closest friends and family are gathered, and her parents smile encouragingly, no longer skeptical. Seunghyo stands at the aisle’s end, looking nervous but radiant. He quietly tells her this isn’t just any venue—it’s a place he designed and built with their future in mind. Seokryu recalls the earlier misunderstanding about keeping the wedding low-key and realizes that this moment is exactly what’s right for them. The mood is tender and filled with anticipatio

Seunghyo begins his vows, his voice steady but full of emotion, reflecting their shared past—the shy boy and the fierce protector, the long friendship blossoming into love. He promises to always be her home, the foundation she can lean on, and the architect of their dreams together. Seokryu responds, speaking of how he saw her for who she really was, beyond the chaos and pressure, and how with him, she found the courage to build a life true to herself. Their vows weave memories, hope, and a deep promise of partnership, bringing quiet tears and smiles. As they finish, petals fall gently around them and the music begins, sealing their new chapter with love and laughter. Seunghyo says he has one last surprise.

Seunghyo leads Seokryu down a quiet street to a beautiful new house standing tall and ready. She blinks in surprise and asks, Whose house is this? He smiles and says, Yours. Seokryu playfully smacks him, refusing to believe it could be real. He laughs and says she needs to stop smacking him now that they are married, but also explains that his firm has been quietly building it all along, knowing she’d be too caught up in wedding chaos to plan a home. He confesses that the moment she said yes, he started designing their future, using her magazine cutouts and Pinterest boards as inspiration. Tears fill Seokryu’s eyes as the reality sinks in—this is their home, a dream she never imagined coming true. Seunghyo wraps his arm around her, teasing there’s one last surprise: a honeymoon trip. But first, their first night will be spent at home—doing what they love most: reading comics together, cozy and content.