せい, しん, しょう
う, こ
None
If what you say comes out blue, everyone knows that means you made a request. You request a favor and the words slide out of your mouth in a bright, blue blob. They hover in front of you for a few seconds, before splashing onto the person you made the request to.
The next time someone requests something from you, take out your saber (せい) and slice it in half!