Now I use Prompt(ssh client for iPhone/iPad). However this ssh client software only support UTF-8
(not support SJIS and EUC).
I had to change terminal coding system to UTF-8.
I changed below configuration
1. .screenrc for GNU screen
kanji utf8 utf8
terminfo xterm KJ=UTF-8
terminfo screen KJ=UTF-8
2. I execute screen with -U option
% screen -U
3. .cshrc for environment variable
now I removed LANG(noset LANG environment variable
4. use lv from jless(Because jless does not support UTF-8, I think)
alias less lv -Ou8