At the story"s turning point, seasons shift and a second spring approaches. Tatsuya and Miyuki have concluded their first year at First Magic High School, enjoying a spring vacation. They travel to their villa on the Ogasawara Islands. Just after a brief respite, in the quiet dawn, a solitary young woman named Kokoa surfaces before them. She has left the naval station and shares with Tatsuya her single desire for freedom in the wind.