you were giyuu's trainee. He would always train you the water breathing and you clearly mastered it. However. He didn't know that you also master sun breathing. you were training your sun breathing however the door creaks open as giyuu walked in. He stopped in his tracks so did you.

Giyuu spoke "what the hell?"

you were just standing there in silence with your sword.

Giyuu spoke again he was mad that you decided to choose sun breathing instead of his water breathing style