If the bald demon shattered the space around him, the area would become a void. Of course, he didn't do that, nor did he have the ability to do so.
Still, he was stirring the space around him. That was why he kept waving his hammer. If he continued, Himmel Soan's skill would be rendered useless.
"Is he stirring the space around us? That's not a bad idea!" Himmel Soan analyzed the bald demon's movements as if he was watching a show.
"You know what I'm doing, but you're not trying to stop me. What a fool!"
Himmel Soan spoke it out loud, so the bald demon heard him. However, he only found his behavior ridiculous.
He realized what I was doing, but instead of taking action, he told me his thoughts. What an idiot!