makyun:

[Arima vs Kaneki]

Kaneki broke Arima’s Quinque but Arima still continues to attack.

Kaneki: Let’s please stop. It’s your loss.
Arima: It’s been 18 years since I became an investigator.
Arima: This is the first time I became empty-handed in front of the enemy.

Arima: I’ll ask you again.
Arima: You don’t have any intention of killing me?
Kaneki: …Yes.

And then Arima slices his throat right in front of Kaneki.