The twins get a summer haircut. Afterwards Hwijae takes them shopping and brings them to visit his former High School teachers home. Shiho invites all the moms to visit Japan. The Choos di some fitness at home with Shiho teaching Sarang yoga moves. Later Sunghoon takes Sarang bike riding at the park. Later that night, Sarang decides to give her dad a makeover. The triplets go to a simulation fireman play center to learn about fire rescue. Later the Songs go grocery shopping for chicken ginseng soup ingredients. Taewoong's friend and former 2 Days & 1 Night cast member Sung Si-kyung visits their home. He gifts Jion a make believe princess play-set and cooks lunch for them. Guest stars: Sung Si-kyung (Source: Wikipedia)