In this week’s episode of Radio Star, four people who struggle to climb over high mountains in life join the show. Um Hong Gil is the first person to climb the 16 highest points over 8,000m in the world. Lee Bong Won, who made a debut as a comedian in the 80s, never ceases to run his businesses for 20 years. Writer Heo Ji Woong currently overcame cancer in a year. Actress Han Bo Reum keeps trying to make her own way in her career. Singer Yook Joong Wan, who is narcissistic, joins the show as a special MC.