Seung Jae and Ji Yong visit the hospital for the checkup. Seung Jae acts as his father’s guardian. Seung Jae visits the dentist this year too. He used to cry a lot and made chaos. Will he get treatment without any fuss? Dong Gook invites special uncle, who would teach him slangs that are used by kids these days. He tries his best to become an insider. Na Eun goes on errands to buy things for her grandma. However, other items catch her attention. Will she be successful at buying all the items?