Buuuut, the Admiral is also the head of the Ninja Corps. So if you are taking orders from him, you are in the Ninja Corps, QED.
This is our, the Shiranui Ninja Corps, first ever expedition. We're rather fired up about it, yes!I'll just make this clear - I'm not part of your Corps. I'm your caretaker, see.The Admiral said "Shiranui being alone fills me with so much unease that my stomach hurts", so it's a request from him, see!The mountain air is just so fresh and clean, isn't it!You're not listening, are you?The Scroll of "A Rival Nuipears!"Good day to you all, DestroNinja Shiranui here.