The beach volleyball tournament has begun. Haruka and Kanata's first opponents are Ai and Mai, who they fought over the swimsuits with. Haruka is out for revenge, but Ai and Mai had their own reasons they couldn't lose.
The story takes place in Okinawa, where Haruka forms a beach volleyball pair with Kanata. Kanata, who couldn't handle the pressure put on her by her short height, had given up on beach volleyball already, but is convinced by Haruka to step back on the sand once again and aim for the junior tournament.