K-Pop Group AtHeart Debuted in Drama Series 3+4
The group starred in a new time-slip drama produced by TITAN CONTENT.
Updated on Sept. 23, 2026 in Pop
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K-pop group AtHeart has made their official acting debut in the drama series 3+4. The show, which depicts a time-slip between 1996 and 2026, premiered with a short-form release on TikTok.
Why it matters
The multi-format release strategy reflects an industry shift toward distributing content across both social media and traditional streaming platforms to maximize global reach.
The drama series 3+4 features a time-slip narrative between 1996 and 2026, centered on the group meeting 3 girls in the earlier period. Studio Genie is managing the domestic and global distribution for the multi-format project.
The players
AtHeart
AtHeart is a K-pop group that has expanded into acting through their lead roles in the drama 3+4.
TITAN CONTENT
TITAN CONTENT is the production company responsible for creating the drama series 3+4.
Nam Tae-jin
Nam Tae-jin is the director who helmed the production of the drama series 3+4.
Studio Genie
Studio Genie is the firm handling the domestic and international distribution for the drama series.
The details
Directed by Nam Tae-jin, the drama series utilizes a tiered release strategy including short, mid, and long formats. Following the TikTok premiere, the mid-form version is scheduled to debut on multiple streaming platforms including TVING, Wavve, Watcha, Genie TV, and Skylife.
Timeline
August 19, 2026: AtHeart released their second single 3!4!.
September 22, 2026: The group released a highlight trailer for the series.
September 23, 2026: The short-form version of the drama premiered on TikTok.
October 2, 2026: The mid-form version launches on streaming platforms.
Industry Dynamics
The reliance on the TikTok short-form drama distribution model marks a shift away from traditional television-first launches. This release follows the pattern set by other K-pop projects using short-form mobile content to reach international audiences before longer broadcast releases.
International viewers in Japan, Taiwan, and Indonesia can expect sequential releases of the drama across regional streaming platforms following the initial launch. Fans can access the content via multiple formats, starting with the short-form episodes already available on TikTok.
The takeaway
The move demonstrates how K-pop acts are increasingly leveraging multi-format media strategies to bridge the gap between music releases and cinematic storytelling. Fans should look for staggered international releases to track the availability of the series in their specific regions.
What happens next
The mid-form version of the drama series 3+4 is scheduled for release on October 2, 2026, across platforms including TVING, Wavve, Watcha, Genie TV, and Skylife.
Further reading
Find more updates on the latest releases in the Pop section.
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