Do Yong-Sik is 31-year-old man with some troubles. He has prepared for the civil service exam for years. During this time, his physical appearance has deteriorated, with a now big gut. Do Yong-Sik is also impotent. He decides to go to a urology clinic to address his impotency. There, Do Yong-Sik meets his first love Lee Ru-Da. She works at the clinic as a urologist.

• Yoon Shi-yoon
• Hani
• Park Ki-woong
• Lee Ji-won
• KCM