In the previous episode, Jae-gyu thinks Bom likes him when she asks him out for drinks. Elsewhere, Yi-joon believes that it is fate that has made him see Bom again.
Spring Fever Episode 4 runs about 75 minutes.
- Spring Fever Kdrama Cast
Ahn Bo-hyun, Lee Joo-bin, Cha Seo-won, Jo Joon-young, Lee Jae-in, Jin Kyung, Bae Jeong-nam - Spring Fever Series Director
Park Won-gook - Spring Fever Release Schedule
January 5, 2026 – February 22, 2026 - AKA
스프링 피버
This new Korean drama consists of 12 episodes, with one episode released every Monday and Tuesday at 21.20 KST.
Spring Fever Episode 4 Recap
Episode 4 of Spring Fever picks up from the tense night when Jae-gyu misunderstands Bom’s words and assumes she has feelings for him. The moment quickly changes when Bom calmly explains that what she meant was something entirely different. She remembers him from the past and simply wanted to thank him for helping her at a very dark point in her life. We are then taken into a flashback that fills in the missing details.
Bom had spent an entire day drinking at a restaurant, lost in her own misery, when Jae-gyu happened to see her. He had only meant to wake her and make sure she was safe. A frightening moment followed when she almost slipped in front of a truck and he rushed in and saved her. In the present, Jae-gyu asks whether that incident was an accident or whether she had wanted to end her life. His question pulls at a deep wound. Bom shuts down, becomes defensive and snaps at him, firmly telling him not to interfere in matters that are none of his business.
In the following days, Yi-joon visits Bom at her house to thank her for protecting Se-jin. He brings food as a gift. Later, when Bom eats it, tears fill her eyes. The taste instantly brings back memories of her father cooking the very same dish for her. The flavour, the warmth and the sense of home crash over her at once. She calls Yi-joon to thank him for it, but before he can answer, the doorbell rings and she goes to see who it is.
Standing outside is a wasp control worker, whom she lets in without suspicion. It turns out the wasp control man is actually Jae-gyu in disguise. The previous day he had overheard Bom complaining about the wasps at her place and, determined to help, he created a fake advertisement and arrived dressed as a pest controller. While working, he cuts one of her trees and overhears her phone call with Yi-joon. Realising the two are about to meet at a café, jealousy flares up and he strikes the tree harder.
It nearly falls on Bom but he manages to pull her away in time. Once she hears his voice, she recognises him at once. Furious, she yells at him again for constantly interfering in her life. Jae-gyu walks away upset, stung by the thought that she may be growing closer to Yi-joon.
Meanwhile, at school the staff split everyone into blue and white athletic teams. Bom is placed in the white team, but her colleague shifts her to blue without asking her. The lack of respect angers her. Se-jin witnesses the commotion and realises that Bom is no longer part of the white team.
Elsewhere, Yi-joon meets Bom’s parents. It is revealed that Bom’s father was the one who had cooked the dish and secretly given it to Yi-joon to pass along without revealing the truth. Yi-joon then asks why Bom has cut off contact with them. A flashback explains the rift. Bom had wanted to sue a woman who had wrongly accused her and slapped her, but her mother insisted she stay quiet to protect the family’s reputation. Bom was shattered that her mother cared more about appearances than about her pain. Her heart broke further when even her father hesitated and tried to confirm whether Bom truly had not been involved in an affair.
Back in the present, Yi-joon takes the legal documents with determination, deciding to fight for Bom’s justice. At school, he and Jae-gyu both agree to help train the teams. Yi-joon chooses the blue team and Jae-gyu works with the white team. Their competitive spirit is fuelled not only by athletics but by their feelings for Bom. Yi-joon assumes she is in blue, while Jae-gyu is convinced she is in white. When Jae-gyu later learns that Bom had been deliberately moved to blue team, he feels disappointed but stays committed.
On sports day, Bom arrives, unzips her jacket and reveals the white team uniform beneath. She stands her ground against the senior staff who had switched her team without asking, reclaiming her choice with quiet strength.
Spring Fever Episode 4 Review
The episode handles themes of misunderstanding, parental disappointment and unspoken trauma with sensitivity. The flashback to the near-accident is especially striking, not because it is dramatic but because of how casually despair slipped into Bom’s life at the time. Jae-gyu’s clumsy concern feels genuine, yet his direct question about whether she wanted to die shows how easily good intentions can reopen wounds. The writing portrays Bom’s defensiveness not as rudeness but as self-protection, making her frustration feel painfully real.
The other major strength of the episode lies in its shifting relationships. Yi-joon’s gentle support contrasts sharply with Jae-gyu’s impulsive jealousy, and both men clearly care yet struggle to express it in healthy ways. The scenes with Bom’s parents are heartbreaking, revealing why she distanced herself from them and how deeply the lack of trust cut her. The sports festival storyline adds a lighter, competitive touch while still symbolising Bom reclaiming her voice when she chooses the white team for herself.
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