As Yūta and the others join Rikka on her summer vacation to visit her grandparents, he notices Rikka seems awfully quiet. As the gang goes to the beach, Yūta learns from Tōka that their father passed away from an illness three years ago, pointing out that Rikka still has not accepted her father's death and had refused to visit his grave. Wanting to help Rikka, Yūta helps her escape from the house and takes her to a place where she believed she saw her father three years ago. They arrive at the place where Rikka grew up, only to find her house long gone, as Tōka catches up with them to remind Rikka about the reality of the situation.
Elenco: Jun Fukuyama , Maaya Uchida , Azumi Asakura , Chinatsu Akasaki , Juri Nagatsuma , Kikuko Inoue , Soichiro Hoshi , Sumire Uesaka .