Promotional posters for "Spring Fever" featuring Ahn Bo Hyun and Lee Joo Bin, as the lead actors, have created a lot of buzz for the viewers of tvN Network's (Korean) television.

The poster features bright colors and a fluid design, all of which provides an early indication of what to expect from the new series and have undoubtedly contributed to the overall buzz leading up to its January premiere.

Ahn Bo Hyun strikes a visually commanding pose as he lifts Lee Joo Bin over his shoulder. The character Seon Jae Gyu is depicted in an assertive manner with an emphasis on his physical power and strong emotional connection.

According to a news piece from AllKpop, it was said that the poster drew notice because "Ahn Bo Hyun's bold tattoo and strong masculine presence" immediately captured viewer attention. The exposed tattoo on his arm adds a charismatic edge to this already rugged character.

Another of the visual details within the poster further dramatizes the playful tone of the drama. Ahn Bo Hyun with a flower in his mouth evokes an unpredictable, intense, light-hearted combination of characteristics in both posture and personality; thus suggesting an equal balance between the wild, unexpected nature of the romance, as well as the development of the character's actions.

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As an example of opposite acting style, opposite to Jung Woo Sung's character, Lee Joo Bin plays her character, Yun Bom, through a range of emotions and nuances that add a lot to the visual chemistry between him and his co-lead actress, Jung Woo Sung.

The way she reacts on the poster is described as displaying "Yun Bom's flustered surprise," and such a detail heightens the emotional tension and points toward their opposing energies. The contrast may well hint at spontaneity, humor, and heartfelt moments that shape their relationship.

Soompi noted that "Spring Fever's" unique tone is expressed perfectly in the design of the promotional artwork for the romantic drama about feelings of vulnerability within numerous new relationships; specifically, about how the feeling of connectedness helps establish a sense of vulnerability and connection.

In addition to conveying these themes of the series, the teaser material that has been released thus far points to a storyline filled with attraction, development and warmth through seasonal transitions.

Leading industry HR professionals believe that tvN is well known for creating memorable seasonal programming with imaginative promotional imagery. As tvN prepares for its run in the very crowded 2026 season, "Spring Fever" will be bolstered by its image and relationship to the series it was designed to promote.

Both leads have built a solid following with recent dramas and add to rising expectations for their on-screen pairing. It is set to make its premiere on January 5, 2026, at 8:50 p.m. KST, and more teasers are expected within the coming weeks as the network puts up promotions for the new series.

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