Request
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.
Picture this blue, slimy request. You could have done that thing by yourself, but you requested it of someone else, and now it's all over and everyone can see it.
せい, しん, しょう
う, こ
None
The next time someone requests something from you, take out your saber (せい) and slice it in half!
Now they have the blue request gunk on them, and you can walk away as your already-blue sword absorbs the rest. Oh, and you don't have to fulfill the request (bonus!).