Three years after “Hospitalité,” Kiki Sugino and Koji Fukada return with another socially aware film that follows the journey of an 18-year-old girl navigating the transition from adolescence to adulthood during a summer in a valley filled with romance. Sakuko, preparing for her university entrance exams, decides to join her aunt Mikie on a trip to a coastal town. There, she forms a friendship with Takashi, a high school dropout and refugee from Fukushima, who works at a motel owned by Mikie’s friend, Ukichi. As she stands on the cusp of adulthood, Sakuko begins to grasp the complexities of growing up.