Daehan, Minguk and Manse are off to Busan, where it's full of Ilkook and his wife's memories. They enjoy swimming in the beach. Seoeon and Seojun are a big fan of Lightning Man that they even go to Lightning Man performances. Hwijae prepares a surprise for the twins. Sarang prepares a secret performance and opens a nail salon just for Girls' Generation. Jion and Taewoong visit a dance studio. Jion enjoys dancing to her aunt's song. Seola, Sua and Daebak go to a market! Donggook tries choosing clothes for his kids for the first time! But Seola and Sua seem to be more interested in toys. Guest stars: Girls' Generation, Guest narrator - Yoo In-na (Source: Wikipedia)