Jungwan, who is about to get married next spring, wants to spend his last summer on the rooftop comfortably! From insect screen repair to mosquito net installation, he rolls up his sleeves. He has a meat party with vegetables from the rooftop house that I planted last spring. What's the harvest of the vegetables? Kangnam is chaotic with the appearance of a giant cockroach. Weapons, including smoke bombs and he's at war against bugs. Who's the winner? Seokjeong invited the members to celebrate joining the rainbow! Meanwhile, the Rainbow World Cup was held at the rowdy gathering.