24-Hour Health Club Episode 2: Lee Jun-young Rescues Jung Eun-ji in a Heartwarming Scene - Fans Call Their Chemistry 'Explosive'

The Blossoming Chemistry Between the 'Health Maniac' and the 'Health Newbie'
Episode 2 of '24-Hour Health Club' aired on May 1, 2025, continuing the story of Do Hyun-jung (played by Lee Jun-young), a passionate gym owner and former bodybuilder, and Lee Mi-ran (played by Jung Eun-ji), a penny-pinching office worker who becomes a new member at his gym.
In this episode, viewers witnessed the beginning of their training relationship as Hyun-jung began Mi-ran's total life care program in earnest. The episode showcased Hyun-jung's shock at Mi-ran's poor physical condition, which reflected her sedentary office lifestyle and love for food. Their first personal training session was particularly memorable, with Mi-ran experiencing severe muscle pain afterward – a situation many viewers found highly relatable.
What made this episode particularly engaging was how it balanced comedy with emotional depth. Hyun-jung's dedication to transforming Mi-ran's life goes beyond just physical training, as he's also desperately trying to save his struggling gym with the money from her expensive total life care package. This financial motivation adds an interesting layer to their relationship, creating both tension and humor.
The Wedding Scene That Stole Viewers' Hearts
The highlight of Episode 2 came when Hyun-jung accompanied Mi-ran to her ex-boyfriend's wedding. In a scene that had viewers holding their breath, Mi-ran faced her former boyfriend with Hyun-jung's support, only to suffer the humiliation of her dress tearing in front of everyone.
Without hesitation, Hyun-jung removed his coat and wrapped it around Mi-ran, protecting her from embarrassment. This gallant gesture marked a significant moment in their relationship and sent viewers' hearts racing. The scene perfectly captured the essence of the budding romance between these two contrasting characters – the 'health maniac' and the 'health newbie.'
The wedding scene also revealed more about Mi-ran's past and her insecurities, adding depth to her character beyond just being a comic relief. Her determination to rebuild her life after this humiliating encounter sets up the emotional stakes for the rest of the series, making viewers root for her success both in fitness and in life.

Lee Jun-young's Impressive Physical Transformation
One aspect of the drama that has garnered significant attention is Lee Jun-young's impressive physical transformation for his role as a former bodybuilder. During the press conference held on April 29, Lee revealed the intense preparation he underwent for this character.
"I had to understand the knowledge that bodybuilding athletes possess, so I studied a lot. The kind of training required was very different from my usual workout routine," Lee explained. "While preparing for this role, I gained a new appreciation for how incredibly dedicated and passionate bodybuilders are."
Lee's commitment to the role extended to his diet and exercise regimen. "I needed to bulk up for this role, so I worked out twice a day whenever I had time. I ate five meals a day, including chicken breast whenever I felt hungry. I tried to maintain this physique until the end of filming, and even exercised between takes since the set was a gym," he shared.
This dedication has not gone unnoticed by viewers, who have praised his authentic portrayal of a fitness expert and his impressive physique on screen.
Jung Eun-ji's Relatable Performance as a 'Health Newbie'
Complementing Lee Jun-young's intense portrayal is Jung Eun-ji's endearing performance as Lee Mi-ran, the 'health newbie' with numerous life struggles. Her character's journey from a sedentary lifestyle to embarking on a fitness transformation resonates with many viewers who have their own fitness goals and struggles.
Jung's portrayal of the physical discomfort and mental challenges of beginning a fitness journey has been praised for its authenticity and humor. From struggling with basic exercises to dealing with severe muscle pain, her character embodies the real experiences of many first-time gym-goers.
Beyond the physical aspects, Jung also skillfully portrays Mi-ran's emotional vulnerabilities, particularly in scenes involving her ex-boyfriend. The character's determination to improve herself despite setbacks adds an inspirational element to the comedy, making her journey about more than just physical transformation.

Viewer Reactions: A Hit in the Making?
Despite KBS's previous struggles with their Wednesday-Thursday drama slot (with shows like 'Kick Kick Kick Kick' and 'Country of Villains' recording viewership ratings in the 1% range), '24-Hour Health Club' seems poised to break this pattern based on early viewer reactions.
Online communities have been buzzing with positive comments about the chemistry between Lee Jun-young and Jung Eun-ji. On platforms like Naver, Daum, and DCInside, viewers have praised the natural progression of their relationship and the balance of comedy and heart in the storytelling.
"The scene where Lee Jun-young covered Jung Eun-ji with his coat was so swoon-worthy! Their chemistry is off the charts," commented one viewer on Naver.
Another fan on DCInside wrote, "As someone who recently started going to the gym, I've never felt so seen by a drama before. The muscle pain scenes are too real!"
The drama has also sparked discussions about fitness and health, with many viewers sharing their own gym experiences and relating to the characters' struggles. This real-world connection may be contributing to the show's growing popularity.
Cultural Context: The Korean Fitness Boom
The timing of '24-Hour Health Club' coincides with Korea's growing fitness culture, which has seen a significant boom in recent years. The drama taps into this cultural phenomenon by exploring not just the physical aspects of fitness but also the social and emotional dimensions of gym culture.
For international viewers, it's worth noting that fitness centers in Korea often serve as social spaces and even potential meeting places for singles. The concept of a 24-hour gym is particularly relevant in Korea's fast-paced work culture, where many people can only find time to exercise late at night after long workdays.
The drama also touches on the pressure to maintain a certain physical appearance in Korean society, particularly in professional and romantic contexts. Mi-ran's motivation to transform herself after seeing her ex-boyfriend is a storyline that resonates with cultural expectations around appearance and self-improvement.
By blending these cultural elements with universal themes of personal growth, resilience, and romance, '24-Hour Health Club' creates a narrative that is distinctly Korean yet globally relatable – a hallmark of successful K-dramas that travel well internationally.
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