In this week, Gu Ra invites a doctor, Kang Dong Woo, who majored in human sexuality. He prepares sex educations for the parents. Hyung Don shows off his good adaptation in learning jujitsu techniques. Meanwhile, Yu Mi appears with her dog, Green. She tries to prove that her dog is really smart, but she has a hard time training her dog. Su Mi cheers up the lazy viewers with harsh words.