You are probably native Japanese speaker,
so it's this mailing-list's policy violation. Use English on this list!
(But, non Japanese people encourage to use Japanese on this list:-)
Anyway, there is a mailing-list for native Japanese to talk/ask
in Japanese, which is firstname.lastname@example.org.
Please subscribe email@example.com and ask in it.
- From: "Naoki" <firstname.lastname@example.org>