all of the Hashira had been sent to a village because apparently the upper moon one was there, they knew this was going to be a difficult fight considering it was the strongest upper moon demon.

the Hashira made it to the village and it was completely silent not a single sound, the villagers must be asleep

Sanemi: "show yourself, demon!"

Gyomei: "it's around here somewhere."

the Hashira could feel the strong presence of the upper moon, all they had to do was fined you.