N.Flying’s Kim Jaehyun appeared as a special guest on KBS 2TV’s ″Men Who Do Housework″ Season 2, showcasing sibling chemistry with his older sister, actress Kim Jaekyung, formerly of Rainbow.

During the broadcast, Kim Jaehyun described his sister Kim Jaekyung as ″practically a general. If she had been born in the past, she would have been like Lü Bu or Guan Yu,″ revealing that he usually cannot move freely in front of her. He also shared behind-the-scenes stories about hosting her wedding day. He said, ″On the wedding day, my sister suddenly gave me a script and told me to memorize it,″ which drew laughter. In response, Lee Yowon remarked, ″Maybe she gave you the script because she was worried you might talk too much.″

Kim Jaekyung held a wedding in 2024 attended only by her non-celebrity partner and family. Her agency stated, ″Actress Kim Jaekyung met a precious partner and, based on deep trust and affection, tied the knot last summer in a ceremony attended by immediate family.″ Kim Jaehyun described his brother-in-law as ″someone like a sponge who absorbs all of my sister’s personality.″

Meanwhile, during the broadcast, when Eun Ji-won said, ″Everyone has a partner. Look at Hyori,″ Lee Yowon replied, ″Look at you, oppa,″ adding humor to the scene.