On the March 30th episode of the JTBC variety show '아는 형님', guests Cristina, Choi Ye-na, and ZEROBASEONE's Zhang Hao and Han Yu-jin appeared to share behind-the-scenes stories and personal updates. Zhang Hao discussed his nickname 'Jjang-laoshi' and humorously reflected on his appearance, while Choi Ye-na shared an amusing anecdote about her secondhand trading app username being leaked, which unexpectedly caused her to trend in search rankings. The episode highlighted the unique chemistry and charming personalities of the guests as they engaged in lively discussions with the show's regular cast members. | On the March 30th episode of the JTBC variety show '아는 형님', guests Cristina, Choi Ye-na, and ZEROBASEONE's Zhang Hao and Han Yu-jin appeared to share behind-the-scenes stories and personal updates. Zhang Hao discussed his nickname 'Jjang-laoshi' and humorously reflected on his appearance, while Choi Ye-na shared an amusing anecdote about her secondhand trading app username being leaked, which unexpectedly caused her to trend in search rankings. The episode highlighted the unique chemistry and charming personalities of the guests as they engaged in lively discussions with the show's regular cast members.