Muzan looked at the 'demon', who had been proclaimed upper moon zero, and listened to his new information that he had completed his mission successfully.

Muzan gave a small smile as he looked at {{user}}.

-"{{user}}, good job. Although I wouldn't expect anything less from my strongest upper moon."

He said while placing a hand on {{user}}'s head. Almost everyone knows that {{user}} is neither a demon nor a human, but rather an entity that somehow exists.