What if the person who melts your heart is someone you least expected to meet? Today, a new tvN K-drama gives you the answer. “Spring Fever,” a new Korean drama in January 2026, starring Lee Joo-bin and Ahn Bo-hyun, brings you a story about healing, unexpected love, and finding yourself in the last place you thought to look. If you’re ready to feel something real, keep reading and discover everything you need to know about this drama.
“Spring Fever” (“스프링 피버”) Korean Drama 2026
tvN’s new Korean drama “Spring Fever” takes you to the beautiful city of Pohang through the eyes of a heartbroken woman. She runs away from a big city and finds healing in a small coastal town—not by forgetting, but through connection. This 12-episode journey offers laughter with genuine emotion like a warm hug on spring days.
The Second Beginning
After her world falls apart in Seoul, Yoon Bom escapes to Shinsu-eup, a quiet seaside town. She starts her new life there and becomes an exchange teacher at Shinsu High School.
At first, she’s distant. Cold. Guarded. But everything shifts when Seon Jae-gyu enters her life. He’s not what he seems on the surface. Although he’s rough around the edges, he’s genuinely kind.
As he shows up for her over time, Yoon Bom slowly opens her frozen heart. She learn to smile again. She starts to hope again. And you’ll feel every small moment of that transformation.
Cast Lineup & Characters
Main Cast
Ahn Bo-hyun plays Seon Jae-gyu. He’s the CEO of JK Power Energy with a heart of solid gold underneath his tough exterior and rough first impression. Although he’s known for actions that make the whole town talk, he brings warmth and genuine care.
Lee Joo-bin becomes Yoon Bom. Although she’s calm on the outside, she’s bruised on the inside. Because she is withdrawn, everyone sees her as a “mysterious new teacher.” In the new place, she’s learning to live again.
Cha Seo-won rounds out the main cast as Choi Yi-joon. He’s an elite lawyer who brings a different kind of tension.
Key Supporting Cast
Cho Jun-young takes the role of Seon Han-gyeol. He’s Jae-gyu’s nephew and a top student in town.
Lee Jae-in plays Choi Se-jin, a fierce student rival who adds another layer to the teen story.
Jin Kyung and Bae Jung-nam round out the school ensemble with teacher energy that can swing from chaotic to comforting.
Production Details
Director Park Won-gook returns after his success with “Marry My Husband” (2024). He chose this drama project because he found the script genuinely fun and full of life.
Kim Jung-ah wrote the screenplay, adapting Baek Min-a’s web novel, which ran from November 2022 to November 2023. The drama was planned by CJ ENM Studios and produced by Bon Factory.
Release Date & Where to Watch
Mark your calendar!
“Spring Fever” will premiere on January 5, 2026. In Korea, it airs on tvN and TVING every Monday and Tuesday at 20:50 KST.
If you live outside Korea, you can stream it on Prime Video on the same day.
The 12-episode season wraps up by February 10, 2026. So you won’t be left hanging for months.
Reasons to Watch
Prime Video literally defines “spring fever” as the tiredness people often feel in spring. The title plays it smart because the story starts with emotional fatigue, not flowers.
Real dialects shape the entire feel. Over 90% of the cast use authentic local accents. Ahn Bo-hyun chose this role because he could use a dialect. He felt confident with it because he’s from Busan. He also pointed to the seaside town’s mood and pace as a draw. This creates a rhythmic charm that immediately pulls you into the small-town atmosphere.
Lee Joo-bin shared that over 90% of the scenes take place outside, with sea breezes, rolling hills, and quiet coastal villages. The backdrop isn’t fake scenery. It’s real. And your eyes are going to feast on this drama. She also hinted at her natural banter and chemistry with Ahn Bo-hyun.
The humor lands hard. Director Park said this drama will move viewers’ laughter cells. But this rom-com is full of comedy and also shows emotional moments that resonate with real life.
This drama doesn’t chase shock value or impossible obstacles. It’s about two people choosing to open their hearts despite their fears. It explores what it means to find lost happiness again.
You might recognize yourself among these characters. The drama captures real-life struggles. Maybe you’re carrying pain, or school/work crushes you. The drama doesn’t ignore that weight. It shows you what comes after. What healing actually feels like. It’s slow, gradual, messy, and it’s built on someone genuinely showing up for you, tirelessly.
Your Story Starts Today
“Spring Fever” offers you real moments, good laughs, and the slow, beautiful process of healing. You’ll watch two people choose each other despite their fears.
Now, the question is yours to answer: when was the last time you let someone break through your walls? Drop your answer in the comments below.
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