Children of the Sea by Daisuke Igarashi is a manga series in five volumes. Ruka is a young teenage girl who acts quicker than she thinks. Her summer takes a turn when she is thrown off the handball team for fighting with a teammate. Not wanting to tell her mother that she was asked to leave the team, she hides out at the aquarium where her father works. That is where she meets Umi and his brother Sora. This odd trio of kids are all drawn to the water, the boys actually having been found as toddlers in the sea. There is a sense of impending danger through out the story, with the deep sea animals washing up on shore, meteorites crashing to earth and the continual mention of the "ghost at the aquarium". The pictures certainly express this hovering fear with the right amount of light and negative space.
Some of the illustrations are a bit mature, showing naked toddlers swimming and tattooed men without shirts. I would definitely recommend this book to the older student who is fascinated by Japanese culture. The back of the book (or front, depending on how you think of it!) explains many of the Japanese words used in the book. The volumes are longer than the normal manga series, but the story is engrossing and flies by quickly!