[So how was he supposed to do this again? Shu only saw an explanation of how to do this one time so he's not entirely confident that it'll work. He knows that he has no choice but to continue. Shu starts boiling some twigs and bark from a fir tree.]

I owe it all thanks to my new friends here. They know things that I don't. Iris says that drinking this should help your muscles relax. If you ever get the chance to speak with her, you should thank her.