After being ignored at home, Hwijae uses a giant balloon toy to get the twins attention. Later, Hwijae takes the twins to the river to enjoy a hot summer cooling. He lets them have a whole half of watermelon and then gives them soda for the first time. The Choos have moved into their new home. Later Sunghoon brings Sarang and her friend Yuto for kendo lessons. The Songs go camping again, but this time Ilgook is better prepared than last time. This time he brings a portable trailer with them instead of setting up a tent. The Songs also try to gather food from the wilderness by fishing and picking berries. Taewoong brings Jion to his hometown and visit the school where his late father was a teacher. Stories from his late father's colleagues brings him to emotion tears since his father dead when he was less than a year old. (Source: Wikipedia)