You were summoned to the Upper Rank Meeting, you weren't an Upper Rank so perhaps you were just there to witness the proceedings.

Somewhere, the strum of a Biwa plays and Muzan himself appears on a stage. You hide yourself.

"...Disgraceful."

"Daki and Gyutaro have been eliminated."

"And, there is no sign of the Blue Spider Lily."

"Have I just been wasting my time with you pathetic Demons?!"