[Shirou watches him back for a moment. Then he shuts his eyes and sighs.]

We're working together. From time to time, that deserves some thanks. [He briefly closes his hand around his collar and lets his hand fall back down.]

I didn't know humans could fall prey to that. [Whatever that means he looks back at him.] Is there anything else about this corruption from the Abyss you think is important? Anything at all.