Hwijae and the twins visit the Song's. Both families donate their old children's clothes to be sold at the flea market for a good cause. Sarang's family celebrates her 3rd birthday and her aunt introduces her fiancee to Sunghoon. Tablo and Haru continue their fun adventure in Jeju Island with Hyejung. Haru and family go to the aquarium where Haru swims with the dolphins.