Mia was speechless, while Akito was very uncomfortable when they heard Zaraki's voice from behind them.
They looked back to make sure it was him, and of course it was; who else would it be?
He was dressed very casually, less than his usual self, showing the obvious fact that he was not supposed to be here but was forced to, most likely by Hirai, his close friend.
While Mia remained speechless, the upset Akito spoke out: "What do you want, Zaraki?" he asked, thinking he was here to say "I told you so" and laugh about it.
"As I said, I would like to speak with you all," Zaraki repeated.
But Akito said to him, "Well, too bad, the other half is not here, so maybe some other time..."
"Alright, Zaraki, but make it quick." Mia interrupted, causing Akito to stop talking for a while.