TXT’s Yeonjun and Soobin cameo in Resident Playbook as fictional K-pop idols, boost ratings to all-time high for medical K-drama
TXT members Yeonjun and Soobin made a surprise appearance in Resident Playbook as part of a fictional idol group, marking a nostalgic moment for fans and helping the drama hit its highest ratings yet. Their cameo ties into the show's new OST, featuring vocals from all five TXT members.
Fans of TXT and Resident Playbook got an unexpected crossover in the recent episode of the tvN drama, when Yeonjun and Soobin appeared in a surprise cameo as K-pop idols of a fictional band. The two members played former bandmates of first-year resident Um Jae Il, adding a fun twist to the emotional medical drama. Their brief appearance also set the stage for a new OST release that brought together the fictional world of the show with real voices from one of K-pop’s biggest groups. Notably, the episode featuring Yeonjun and Soobin also became the highest-rated episode for the drama yet.
Um Jae Il's nostalgic past revealed
On May 10, Resident Playbook introduced a surprising backstory for first-year resident Um Jae Il, played by Kang You Seok. Before becoming a doctor, Jae Il was a member of a now-disbanded idol group called HI-BOYZ. During a karaoke scene in the episode, he performed his group’s emotional track When the Day Comes. As he sang, flashback visuals played, showing Yeonjun and Soobin dancing alongside him as his former bandmates.
yeonjun & soobin from hi-boyz 🫶 pic.twitter.com/1XYjc9HI4v
— 💬 (@translatingTXT) May 10, 2025
TXT vocals featured in the official track
Although only Yeonjun and Soobin appeared in the video, the full song features vocals from all five TXT members. When the Day Comes will be released as part of the Resident Playbook OST on May 11 at 6 p.m. KST. Fans will also get to see a full performance video from the fictional group HI-BOYZ on May 12 at 12 p.m. KST.
A ratings boost for the drama
The episode featuring Yeonjun and Soobin gave Resident Playbook a noticeable boost in viewership. According to Nielsen Korea, the May 10 broadcast earned a nationwide rating of 6.2 per cent, marking the show’s highest rating so far. As it enters its final two weeks, the series continues to gain momentum.
About Resident Playbook
Resident Playbook is a spin-off of the popular Hospital Playlist series. It follows the lives of OBGYN residents at Jongno Yulje Medical Center as they deal with the challenges of their first year in medicine. The drama mixes emotional storylines, friendships, and the daily grind of hospital life, making it both relatable and heartwarming for viewers.
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As an Entertainment Content Writer with 3+ Years of experience, I have been keeping a keen eye on who wore what. A self confessed Koreaboo, I am your fangirl next door. Ps: I take pride in saying that I grew up watching "It's Controversial" as a kid.
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