Go Yang-Sun, who is fat from birth, enters Dr. Park's diet club because her parents are nagging her. Although Dr. Park seems suspicious, her history is more reliable than anyone else's. This place boasts a 100% success rate, and there is only one condition for leaving: "You must lose all of your target weight!" Will Yang-Sun, who weighs over 100kg, be able to successfully diet and leave this place with a smile?!(Source: Naver, translated)