Actor Lee Seo-jin (54) and IVE member An Yu-jin (22) delighted fans with their unexpected on-screen pairing in the SBS variety show My Grumpy Secretary. The upcoming January 9 episode features An Yu-jin as the 14th guest star, and teasers already have viewers buzzing over their unique chemistry despite a 32-year age gap.

An Yu-jin, who previously received a love call from the show during the press conference, joins the cast fresh off her role as MC of the 2025 SBS Gayo Daejeon. In a preview clip, she confidently teaches the My Grumpy Secretary team some signature gestures and radiates the confident mindset of a K-pop queen. However, fellow cast member Kim Kwang-kyu’s humorous misunderstanding of the term “queen” highlighted the generational divide, earning laughs from viewers.

Fans are especially excited about the interaction between An Yu-jin often dubbed the “daughter” of famed PD Na Young-seok and Lee Seo-jin, who is known as Na PD’s long-time “persona.” The pairing has sparked comments such as “This is Na PD’s dimple family,” and “Finally, Yu-jin meets her honorary uncle,” with many praising the “unexpected but perfect” combination.

In a special holiday twist, the cast of My Grumpy Secretary including Lee Seo-jin transforms into An Yu-jin’s stand-in uncles and throws her a surprise Christmas home party. After a long day of back-to-back schedules, Yu-jin is treated to a heartfelt homemade meal and some real-world advice from her seasoned industry seniors. Reflecting on the experience, she remarks, “I can’t believe the three of us are spending Christmas together…” hinting at the emotional resonance of the episode.

My Grumpy Secretary airs on January 9 at 11:10 PM KST on SBS.

Sources: Daum