[It is a big deal, and Duster turns around so his arm is behind Aoi's and he can better look at him in the face with a serious expression.]

Even if I was controlled by someone else, I still killed you. And...I'm sorry for worrying you. I didn't mean for things to go they way they did when we last talked. [A deep breath. The murder wasn't the worst part.] I went to the police because I knew Sparks would let me stay there, and I wouldn't be used again.

[He looks at the ground. As much as he disliked Aoi when they first met, Duster has grown to like and care about him. He deserved an apology.]

...How's Akane doing?