Mijoo played along with a joke that she had moved her appearance forward specifically to meet Ahn Hyo-seop. She instantly knew she was one year older, prompting the cast to tease her for doing so much research.
Broadcast context
Episode 548 of JTBC's South Korean show Knowing Bros aired at 9 p.m. Korean time on October 24, 2026. Ahn visited with Hong Hwa-yeon, Jang Ryul and Jung Yoo-jin to promote Final Table. Mijoo joined the classroom panel as a special member.
The exchange
Mijoo offered to help the nervous actor. Kim Shin-young asked whether she had come for somebody in particular. Seo Jang-hoon told the on-air story that she was originally scheduled for the following week but came early because of Ahn. Mijoo accepted the joke about taking the slot. Lee Soo-geun asked their age difference; she immediately said one year. Kang Ho-dong teased her for looking it up.
Why it was funny
The humour escalates from ordinary kindness to an exaggerated schedule change and finally suspiciously precise knowledge. Knowing Bros uses a fictional classroom where guests are transfer students. Korean age-based forms of address give Mijoo a playful excuse to act like a protective older classmate, which the cast turns against her.
What is verified
The verified event is the televised exchange, not a confirmed private romance or an independently documented casting dispute. JTBC posted a 4:38 preview, a 22:06 highlight and another clip on October 24; News1 reported the conversation on October 25. This account relies on those sources, not a claimed full viewing.
Conclusion
Ahn came to promote a drama, but Mijoo ended up revealing how thoroughly she had prepared to meet him. “One year” was the giveaway.
References (5)
- JTBC official highlight, 2026-10-24: https://tv.jtbc.co.kr/clip/pr10010392/pm10032711/vo10950071/view
- JTBC official advance clip, 2026-10-24: https://tv.jtbc.co.kr/trailer/pr10010392/pm10032526/vo10949981/view
- News1 report, 2026-10-25: https://www.news1.kr/entertain/broadcast-tv/6330830
- JTBC separate official clip, 2026-10-24: https://tv.jtbc.co.kr/clip/pr10010392/pm10032711/vo10950053/view
- JTBC episode 548, 2026-10-24: https://vod.jtbc.co.kr/player/popular/vo10950023
