According to SBS on the 9th, SBS entertainment program All The Butlers' will discuss the difficulties of human relations and the resulting brain scientific phenomenon with 'brain expert' jung jae-seung Master. Prior to the full-scale class, Master jung jae-seung began the discussion with a simple question: "What watch will you wear when attending a party?" jung jae-seung then listened to all the members' answers and asked a completely different question again in the same situation. Eun Ji-won said, "It's a big hit. I think the answer is different because I think the same situation is reversed." jung jae-seung then asked the question, "Why do humans do Gut?" He said, "People feel joy in the brain stimulation that occurs every time they do Gut." The secret of brain science was revealed. Lee Hye-sung, a daily student, revealed an episode in which he heard the words "Dare to go to the same shop as me" in his actual work life. The Gut episode that Lee Hye-sung actually experienced is revealed on the air. In addition, jung jae-seung said, "Our brain has a wide range of areas to be in the position of others." He explained the right attitude we should have in the difficulties of human relationships that are common in everyday life. Broadcast at 4:50 pm on the 9th.