Hello!
You can play using your twitter account by permanently binding your twitter account to an oasis Naruto Online using the following instructions.
(Note that these instructions say for Facebook, but they are the same for Twitter)

You c*so submit new miniclient requests and changes on this thread if you'd like this change to be added!

https://forum-narutoen.oasgames.com/page/show-post-49546-1.html

Please let me know if you have further issues, thanks!

Hello,

Which part did you not understand?