The movie starts out with Katsuhiko going to the US, with Kasumi and Yusaku seeing him off at Narita. Two years later, Katsuhiko is a professional racer, and comes back to Japan to race (and to marry Kasumi). Yusaku's hobby is photography.

A sea otter and his friends, a raccoon and squirrel, live and play together in the forest.

Full version of the story featured in the TV series. Released as a special.