Generally, I love Japanese anime. They are more like serious full-length movies than children’s cartoons. So this cartoon is, of course, possible to look, but he touches on deep themes.
The story is very simple the most ordinary people. Maybe that’s why so easily drawn into the story, empathize with the heroine. And the heroine UMI is a very interesting character. On the one hand just a girl with those problems and concerns that can have a girl her age. On the other hand she stands out among her peers with some inner power and light.
Some everyday situations, everyday worries are teenage problems all with a Japanese flavor. I advise you to watch for children and adults!