Kim Young Ho, a personal trainer to Hollywood celebrities, hails from an affluent family. Despite his privileged upbringing, he endured a severe injury in his youth. Today, he navigates his challenges with resilience and determination. On the other hand, Kang Joo Eun, a 33-year-old attorney, has faced hardships while providing for her family. Currently, she is dealing with weight issues and is determined to embark on a diet journey.