Ocean's Eleven!.Houki calls her sister Tabane, who reveals she has completed a personal IS called the Akatsubaki just for her. After being grappled by Laura (who snuck into his room during the night) and beaten up by Houki, Ichika goes with Charlotte to the mall to buy swimsuits for the upcoming beach study session while Cecilia, Lingyin and Laura stalk them. When Charlotte notices them following her, she hides with Ichika in the dressing room to show off her swimsuit, but they are eventually discovered by Chifuyu and Maya instead. During the beach study session, each of the girls tries to get close with Ichika, but their efforts somehow backfire. The students and staff then enjoy a game of beach volleyball. As sunset arrives, Chifuyu talks with Houki about Tabane and believes her sister will come with the Akatsubaki on the seventh day of July.