Summer vacation has just begun. Konata, the Hiiragi twins and Miyuki go to a summer festival clothed in yukata. Yui Nanami is first introduced in this episode, currently on patrol at the festival. Konata and Nanako chat over an online game. Later on, Konata and the twins meet and do homework together. Back at her house, Konata finds a rare drop and celebrates it with her online friends.