It's summer vacation, and confronted with the prospect of spending it with the other Student Council candidates, Renko erupts in rage and stalks off alone to her family's summer house. Her departure shakes the normally-irrepressible Tokino, who holds herself responsible for Renko's behavior. But a chance reunion and a perilous situation, along with a little help from Kaoruko, may help show Renko what friendship really means.