"I thought the purpose of hot springs was a way to build companionship with ones friends?" If she had found her friends she would go with them. At least, she would endeavor to until the boys explained she could not go in with them. But she hasn't found them yet, so she cannot ask them to the hot springs with her.

Once divested of her usual attire, and dressed only in a towel... her hair changed again. It was now a flower bloom of hearts tightly adhearing to the back of her head... Like it was pinned up to go into the bath.

At least her hair knew the right and wrong way to go into a communal bath.

"Is there anything else I need to do?"