C1593 Granduncle what's wrong with you?

Granduncle, what's the matter with you?

"…" He tried to open his mouth to curse, but his mouth didn't seem to open. No, he shouldn't be able to make a sound. The sound he made could not cause the air to vibrate. Only his mouth could be seen opening and closing without any sound. Very quickly, he felt this awkwardness. Well, I was defeated. Thus, he stared with wide eyes and stopped talking