It wasn't the punch that stopped her. That intrrupted her for a second or two, but it didn't stop her. It was the duct tape that stopped her. The look she gave the demon showed exactly how unimpressed by this she was. You could half read her saying 'coward' with her eyes.
A small noise escaped her when the punch to her stomach landed. She couldn't scream if she wanted to, not that she wanted to. It took few a few seconds to recover, since her rips were already nicely bruise from the eight other demons that had attacked her earlier. It didn't take her long to straighten out again, and her eyes staid determined, glaring directly at the demon.