A half black Japanese boy, Keisuke, moves to countryside from downtown Tokyo. He faces discrimination because of his skin color, but he decides to prove them wrong and sure he's not scary through his behavior.
The theme of this film must be racism or any kind of discrimination triggered by physical differences. Indeed, in Japan, people who does not match a Japanese typical appearance often treated differently, which is said to be more obvious in countryside. Though I thought lines might be unnatural as kids and other characters spoke too formally, I like the idea itself. I believe it is very meaningful to discuss the topic in the short film, and found it interesting to tell a story through the children's eyes.
If you are interested in social issues related to ethnicity especially in Japan, this short film is highly recommended; just be aware of exaggerated expression. But even if you are not very much keen to know about the matter, this short film would still leave you with a good motivation as the protagonist tries to overcome his difficulty.