Furuta is talking to someone on the phone while watching the battle with Kaneki/Haise and Eto. He mentions something like, ‘ah so you’re able to come?’ then calls him boss.

Back to Kaneki/Haise and Eto, Eto says that there is actually no OEK and they’re still in the middle of making one which is also what the CCG is doing. She also mentions how Kaneki/Haise will overcome Arima as this continues.

Eto invites Haise/Kaneki to join Aogiri, be the King and promises to tell him everything. But before anything else, Arima arrives and stabs Eto in the throat.

Eto: Agh…
Eto: (So he’s interested in him 'now’…)

Arima: Haise.
Kaneki: Arima…
Kaneki: I’m no longer Haise. I am now Kaneki Ken.

Arima: You are my Quinque, Sasaki Haise.
Arima: A Quinque capable of thinking, speaking and taking actions by himself.
Arima: You are more interesting that way.