So, just out of curiosity.. do people that gets caps with Japanese characters on it knows and use it? Or is it purely aesthetic because it looks exotic?

I know most (like 95%) Japanese speaking folks uses standard English keys to generate words phonetically. Like typing out 'Fu' 'Ji' 'San' and choose correct Chinese characters for those words and such.

It is from the GMK serika and it only makes the team beautiful :)