Actor Cho Jun-young talked about the chemistry in Spring Fever.
Cho Jun-young gave a wrap-up interview for the tvN Monday-Tuesday drama Spring Fever (writer Kim A-jeong, director Park Won-guk, planned by CJ ENM STUDIOS, produced by Bon Factory) on the 9th at the OSEN building in Hapjeong-dong, Mapo-gu, Seoul.
Spring Fever is a drama that depicts a hot pink romance in spring that will melt the frozen hearts of teacher Yoon Bom (Lee Joo-been), who faces biting cold winds, and man Seon Jae-gyu (Ahn Bo-hyun), who has a burning heart. As of the fourth week of airing it recorded a cumulative 410 million views, achieving one of the highest results among tvN Monday-Tuesday dramas aired since 2025, and episode 12 recorded an average nationwide rating of 5.7% on paid platforms combining cable, IPTV and satellite (based on paid platforms combining cable, IPTV and satellite, provided by Nielsen Korea).
Spring Fever concluded its grand finale with episode 16, which aired on the 9th, and Cho Jun-young delivered a passionate performance as Seon Han-gyeol in the series. Since his debut he drew attention for his tall height, deer-like eyes and distinctive visuals like a pure romance comic protagonist, and having appeared in Live On, Crushology 101, and Spirit Finger!, Cho Jun-young in Spring Fever not only achieved a synchronization rate that surpassed the original, but despite being a newcomer showed a stable mid-to-low voice tone, precise diction and emotional acting, stamping his mark as a youth drama icon.
One of the reasons for Spring Fever's popularity was the perfect chemistry among the actors. Cho Jun-young expressed gratitude about his chemistry with Ahn Bo-hyun, who played his uncle in the series, saying, "On set he really took care of me like an uncle. When I struggled with the dialect he encouraged me beside me and bought me a lot of delicious food; he was a dependable senior." He added that the two's physical chemistry was especially remarkable. Saying they became close while working out together, he recalled, "Ahn Bo-hyun senior's training method is Sparta-style. It was tough, but sweating together allowed us to get close like older and younger brothers."
Regarding the much-talked-about upper-body exposure scene of the two actors, he revealed, "If Ahn Bo-hyun senior has grand, full muscles, Han-gyeol has slim, firm muscles like a high school student, so we talked that the different feels were good." Although he usually keeps in shape, for this scene he adjusted his diet starting two weeks earlier and even controlled his water intake the day before filming to prepare intensely. As a result, a perfect abdominal scene was born that combined boyish charm and masculinity.
The fresh romantic chemistry with co-star Lee Jaein (who played Choi Se-jin) is also not to be overlooked. Cho Jun-young said, "In the early part of the drama we talked a lot to naturally portray the process of changing from a relationship of mutual dislike to one of feelings." He added, "Actor Lee Jaein was senior to me, so I had a lot to learn. When I worried about the dialect or lacked confidence, she would playfully mimic the dialect beside me to ease my tension and encouraged me by saying, 'You're doing well, so be comfortable,' for which I'm grateful."
Their romance rode viewers' algorithms and received great love. Cho Jun-young joked, "Originally I thought the 'uncle chemistry' with Ahn Bo-hyun senior would stand out, but seeing scenes trending on shorts like Se-jin and I almost holding hands at the movie theater, I realized this is also my preference." He playfully added with cute confidence, "In reality I think our 'Han-gyeol–Sejin' couple was fresher and sweeter than the 'GgyuBom couple (Ahn Bo-hyun–Lee Joo-been)."
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