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Hello Korea > Blog > K-DRAMA > Spring Fever Uncle Series: The Charm of Unpredictable Romance
K-DRAMA

Spring Fever Uncle Series: The Charm of Unpredictable Romance

Last updated: 2026-01-31 12:13 pm
Hello Korea Editor
5 Min Read
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Get ready to swoon! tvN’s ‘Spring Fever’ is enchanting viewers with its uniquely charming ‘Is Uncle ~?’ series, a narrative device that has become the heart of its burgeoning romance.

Contents
  • Unraveling the ‘Is Uncle ~?’ Charm
    • A Signature Line for a Signature Couple
  • The Genius Behind the Series
    • More Than Just a Catchphrase

Broadcasting every Monday and Tuesday at 8:50 PM KST, ‘Spring Fever’ (written by Kim A-jung, directed by Park Won-guk, produced by CJ ENM STUDIOS and Bon Factory) is a sizzling, hot-pink romance poised to melt even the chilliest hearts. It tells the story of Yoon Bom (played by Lee Joo-bin), a teacher with an icy demeanor, and Seon Jae-gyu (played by Ahn Bo-hyun), a man with a burning passion. Now eight episodes in, their romance has truly blossomed, earning them the adorable nickname ‘Kkyu-Bom Couple’ and delivering sweet, heart-fluttering moments.

Unraveling the ‘Is Uncle ~?’ Charm

Every time Yoon Bom encounters Seon Jae-gyu‘s unpredictable antics, she throws out the line, “Is Uncle ~?” This catchphrase has become a captivating highlight in each episode, serving as a clever and impactful way to reveal Seon Jae-gyu‘s character – a man with a gruff exterior yet brimming with justice and warmth. Viewers are now eagerly anticipating what extraordinary actions Seon Jae-gyu will take next, adding another layer of fun to the drama’s unfolding narrative.

A Signature Line for a Signature Couple

From “Is Uncle that person?” in episode 1, to “Does Uncle work?” in episode 2, “Is Uncle my dad?” in episode 3, “Is Uncle the youngest son of a chaebol?” in episode 4, “Is Uncle not leaving?” in episode 5, “Is Uncle a thief?” in episode 6, “Is Uncle the boss?” in episode 7, and finally, “Did Uncle collapse?” in episode 8 – this impactful single line, delivered in each episode, has sparked laughter or provided unexpected twists, cementing its place as ‘Spring Fever’s’ signature element. Viewers have poured out enthusiastic responses:

  • 🍿 “The ‘Is Uncle ~?’ series is so fresh and entertaining. It’s clear these lines aren’t just thrown in randomly.”
  • 🥺 “I find myself watching, curious about what the next line will be.”
  • 😂 “The ‘thief’ episode 6 truly made me burst out laughing!”
  • 💘 “It’s hilarious every time Bom gets surprised by this line. It’s the first thing that comes to mind when I think of this drama.”
  • 🎭 “Episode 8 was such a twist because it was Teacher Seo, not Bom, who said it!”

The Genius Behind the Series

Regarding this phenomenon, the production team shared the creative backstory of the ‘Uncle Series’: “This work tells the story of Yoon Bom falling helplessly for Seon Jae-gyu‘s unpredictable actions. We designed the episodes hoping viewers would naturally become captivated by Seon Jae-gyu, just like Yoon Bom. To convey that process in a more entertaining way, we came up with the sub-heading-like line, ‘Is Uncle ~?’.”

More Than Just a Catchphrase

They continued, “Seon Jae-gyu and Yoon Bom are characters who proactively seek their own happiness, rather than passively dwelling on events. As characters who solve big and small problems in their village and grow beyond past wounds and sorrows, watching how Yoon Bom smartly retorts with ‘Is Uncle ~?’ instead of avoiding Seon Jae-gyu‘s extraordinary actions will be a key delight in enjoying the series. It’s truly a narrative masterpiece.”

Intense interest is now focused on what new episodes and scenes will be brought to life by ‘Spring Fever’s’ signature catchphrase, which is generating buzz every week.

With just four episodes remaining, anticipation is high for what new ‘Uncle Series’ lines will appear to make viewers laugh and flutter with excitement. tvN’s Monday-Tuesday drama ‘Spring Fever’ episode 9 airs on February 2nd at 8:50 PM KST.

This creative storytelling truly captures the essence of unexpected love, drawing us deeper into the characters’ emotional journey. It’s a wonderful example of how a simple, repeated line can build such a rich and endearing connection with the audience.

Editor: Hana Lee 🎬

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