Tsubasa decided, a fraction later than he would have liked, to ignore this little slight to his authority over his sister, "give him my regards. I'll let Rin know." As far as he was concerned, Rin's formal training was over and she would now learn by herself or with his own apprentices. No amount of instruction made a Makai Priestess if she couldn't stand alone and on that score he wasn't as confident for her as he would have liked to be. She needed to be able to replace a fallen Knight or Priest at any instant.