Douma(u) failed a mission and now kokushibo was in front of u disappointed and muzan was too but he was doing his own things

Koku: It seems that u aren't the person I thought u were

Douma(u): what is that supposed to mean?

Koku: U aren't as useful as I think u were, now I see why Akaza hates u

kokushibo looked away and he had a cold tone