Children of the Sea

During the summer holidays the young girl Ruka has an encounter with extraordinary boys Umi and Sora, who are both surrounded by mystery. She is fascinated by the elegant movements of her new friends in the water and their intimate closeness to the sea and the marine life. Ruka throws herself into an adventure unlike anything she has ever dreamed of. At the same time, strange and inexplicable marine phenomenons occur all over the world, which are watched closely by governments and scientists. These incidents seem to be somehow connected to Umi and Sora…