Spring Fever (TV series)
2026 South Korean television series
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Spring Fever (Korean: 스프링 피버) is a 2026 South Korean television series starring Ahn Bo-hyun and Lee Joo-bin. Based on the web novel of the same name by Baek Min-a, it depicts the story of a woman who leaves Seoul after a heartbreak and meets a man who changes her life. It premiered on tvN on January 5, 2026, and aired every Monday and Tuesday at 20:50 (KST). It is also available for streaming on Amazon Prime Video globally.
| Spring Fever | |
|---|---|
Promotional poster | |
| Hangul | 스프링 피버 |
| RR | Seupeuring pibeo |
| MR | Sŭp'ŭring p'ibŏ |
| Genre | Romantic comedy |
| Based on | Spring Fever by Baek Min-a |
| Developed by | CJ ENM Studios |
| Written by | Kim Ah-jung |
| Directed by | Park Won-gook |
| Starring | |
| Music by |
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| Country of origin | South Korea |
| Original language | Korean |
| No. of episodes | 12 |
| Production | |
| Executive producers |
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| Producers |
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| Running time | 70 minutes[2] |
| Production company | Bon Factory |
| Original release | |
| Network | tvN |
| Release | January 5 – February 10, 2026 |
Synopsis
Yoon Bom is a Seoul vibrant teacher who was accused of an affair scandal unfairly and she moved to Shinsu-eup, a rural area after her bad experience in Seoul. She starts teaching there and is cold and distant at first. But when she meets Seon Jae-gyu, a rough but kind hearted local man, she starts to warm up and opens her heart again.
Cast and characters
Main
- Ahn Bo-hyun as Seon Jae-gyu[3]
- The CEO of JQ Power Energy. People who surround him see him as a big guy who might look like a rough street type, but he's actually got a heart of gold, is super considerate, and is just a genuinely nice guy.
- Lee Joo-bin as Yoon Bom[3]
- Han Joo-hyun as young Bom
- After a painful past in Seoul, she moves to Shinsu-eup and becomes a small-town teacher, catching the villagers' attention. She's tough outside, but soft inside.
Supporting
- Cha Seo-won as Choi Yi-joon[4]
- An elite lawyer.
- Cho Jun-young as Seon Han-gyeol[4]
- Jae-gyu's nephew.
- Lee Jae-in as Choi Se-jin[4]
- Han-gyeol's rival.
- Bae Jung-nam as Jeong Jin-hyeok[5]
- A PE teacher at Shinsu High School.
- A first-year teacher at Shinsu High School, who handles homeroom duties and teaches Korean language. She's a mother of twins.
- Son Yeo-eun as Seon Hee-yeon[7]
- Han-gyeol's mother
Production
Development
Spring Fever is directed by Park Won-gook, who previously helmed Marry My Husband (2024), written by Kim Ah-jung, planned by CJ ENM Studios, and produced by Bon Factory. The series is based on the web novel of the same name by Baek Min-a.[8][9] It consists of 12 episodes.[5]
Casting
In October 2024, Ahn Bo-hyun and Lee Joo-bin were reportedly cast, and principal photography was scheduled to begin in 2025.[8]
In April 2025, Cha Seo-won was chosen to join.[10] In May, Lee Jae-in is under positive review by her agency to appear.[11] The casting of Ahn and Lee Joo-bin as the leads was officially confirmed in July.[3] In September, Cha Seo-won, Cho Jun-young, Lee Jae-in, and Bae Jung-nam reportedly joined the cast.[4][5]
Release
Spring Fever was originally scheduled to premiere on tvN in the second half of 2025 but later moved in the first half of 2026.[3][4] The series was confirmed to premiere on January 5, 2026, airing every Monday and Tuesday at 20:50 (KST).[12] It is also available for streaming on Amazon Prime Video in more than 240 territories.[13]
Viewership
| Season | Episode number | Average | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |||
| 1 | 1098 | 1080 | 1283 | 1155 | 1225 | 1154 | 1182 | 1192 | 1295 | 1280 | 1361 | 1316 | 1218 | |
| Ep. | Original broadcast date | Average audience share (Nielsen Korea)[14] | |
|---|---|---|---|
| Nationwide | Seoul | ||
| 1 | January 5, 2026 | 4.832% (1st) | 4.676% (1st) |
| 2 | January 6, 2026 | 4.605% (1st) | 4.265% (1st) |
| 3 | January 12, 2026 | 5.407% (1st) | 4.575% (1st) |
| 4 | January 13, 2026 | 5.041% (1st) | 4.858% (1st) |
| 5 | January 19, 2026 | 5.007% (1st) | 4.579% (1st) |
| 6 | January 20, 2026 | 4.918% (1st) | 4.396% (1st) |
| 7 | January 26, 2026 | 5.140% (1st) | 5.460% (1st) |
| 8 | January 27, 2026 | 5.163% (1st) | 4.750% (1st) |
| 9 | February 2, 2026 | 5.354% (1st) | 5.092% (1st) |
| 10 | February 3, 2026 | 5.456% (1st) | 5.311% (1st) |
| 11 | February 9, 2026 | 5.523% (1st) | 5.208% (1st) |
| 12 | February 10, 2026 | 5.748% (1st) | 5.640% (1st) |
| Average | 5.183% | 4.901% | |
Awards and nominations
| Award ceremony | Year | Category | Nominee | Result | Ref. |
|---|---|---|---|---|---|
| Golden Cinematography Awards | 2026 | Special Acting Award (TV Drama) | Lee Joo-bin | Won | [15] |
