Her spine stiffened infinitesimally when the too familiar presence of her brother came close, but Amaterasu allowed no outward display of recognition to either him or his words. Instead she turned her head towards the daughter of Triton, keeping her voice carefully modulated and just loud enough for her words to carry back to her brother.
"I will not interfere, and you have my blessing to do as you wish to claim retribution for your father and your family." For a brief moment she hesitated, inwardly debating if she should draw the line as to how far the Grecian could go, but if nothing else she knew that the other woman would not go any further then honor allowed. "Do as you see fit." Stepping back out of the immediate range, she turned her sights back to the brother who had come so close to destroying what little bit of happiness she had culled for herself. The tree rustling just to her right was a curious thing, but she didn't allow her attention to be divided anymore then between Susano'o and Athena.