"Dae Jang-Geum Is Watching" follows the lives of 2 brothers and 1 sister who are descendants of Dae Jang Geum. The siblings love to eat.
San-Hae (Shin Dong-Wook) is the oldest sibling and he has excellent sense of taste. He works at a company and gets involve with rookie employee Bok Seung-A (Kwon Yuri). Jin-Mi (Lee Yeol-Eum) is the second sibling and she has an excellent sense of smell. Jung-Sik (Kim Hyun-Joon) is the youngest sibling and he has excellent cooking skills. He is a vlogger on YouTube.