To almost all DU players, the Japanese language will seem like noise, with difficult to distinguish characters.
Hence, I don't want to use it in global chat. That is why I am not using Japanese in this thread, even though the content is to be explained to Japanese people.
In MMOs of a decade ago, languages that used 2-byte character codes were often blanked or displayed abnormally on chat screens in other countries.
However, since it is difficult to follow up with Japanese beginners using English, which I am not proficient in, I wanted to let you know as a means to reach local channels in times of trouble.
Well, I know it is somewhat difficult to play DU without understanding English (or German or French).
It's pretty sad that I've been playing since the quirky alpha and never once had anyone to talk to in native language.
As a last resort, I use Discord.