If only Greensprout worked here. A piano is mostly wood, the cleansing effect would likely be effective. But no, none of her powers of growth and revitalization function on this ship.

Power Slash remains perfectly fine, however, and a brief moment of slowed time gives Amaterasu plenty of time to make three careful, deliberate cuts, freeing Usagi's arm. She follows this up with a quick headbutt to create some distance.

For a guardian of love and justice, Usagi's outfit doesn't seem to protect her much. And being human, she doesn't even have a comfy layer of fur to keep her safe. "Are you okay?"