“Our Unwritten Seoul” Surges to the Top in Just 4 Episodes: 3 Reasons Why It’s the Breakout Hit of 2025
tvN’s weekend series Our Unwritten Seoul has captured the hearts of a wide demographic and, in just four episodes, has achieved its highest ratings yet. The fourth episode, which aired on June 1, recorded a nationwide average of 5.9% and a peak of 6.7%, with even higher ratings in the Seoul metro area (6.5% average, 7.5% peak), according to Nielsen Korea.
It ranked #1 in its time slot across all cable and general programming channels, and also topped the 2049 male and female demographic — tvN’s key target audience — solidifying its broad appeal.
There are several reasons behind the drama’s rapid rise in ratings:
Park Bo-young‘s Standout Performance
She plays twin sisters Yu Mi-ji and Yu Mi-rae — two characters living completely different lives — with distinct speech patterns, vibes, and styles. Taking on a quadruple role due to the identity swap plot, Park has been widely praised for her range and immersion, with many viewers commenting, “Is that really the same person?” She currently tops the buzzworthy actor rankings.
A Well-Written Script and Emotional Direction
Written by Lee Kang (Youth of May) and directed by Park Shin-woo (Our Beloved Summer), Our Unwritten Seoul follows twin sisters who secretly switch lives, helping each other heal old wounds and rediscover their true selves. The emotional authenticity and realistic character development have resonated deeply with viewers.
A Quiet but Powerful Emotional Core
Unlike many dramas that rely on shocking twists or exaggerated conflicts, Our Unwritten Seoul focuses on introspection. It gently asks, “Who am I, really?” and “Can I accept myself as I am now?” With a mix of Seoul and rural backdrops, subtle cinematography, and a soothing soundtrack, the series delivers comfort and quiet strength.
Starting at 3.6% for its premiere, it jumped past the 5% mark by episode 2 and exceeded 7% in the capital region by episode 4. It also claimed the #1 spot on Netflix Korea’s “Top 10 TV Shows Today,” gaining traction among both domestic and international viewers.
Our Unwritten Seoul offers small moments of healing for emotionally exhausted modern audiences. Through characters confronting their pain and reconnecting with others, it provides a universally resonant story of growth and recovery.
With a heartfelt twin-sister narrative, hidden scars, and a blend of realistic emotion and stylish direction, Our Unwritten Seoul is shaping up to be much more than just another romance drama. As the story begins to deepen following the first love confession, anticipation is growing for what lies ahead.
Our Unwritten Seoul airs every Saturday and Sunday at 10:20 PM KST on tvN.
