[Hereafter] Chapter XXIX: The Fourth Wall (Patreon)

You'll get the joke at the very end of the chapter.

So, you know how Arash has been kinda quiet throughout Orleans? Yeah, well, he's not so quiet here, although Taylor might prefer if he was. He's the kind of person who will definitely confront her on her bullshit when he sees her doing it, and he'll do it so compassionately that she can't really be angry about it.

For reference, yes, this is Ritsuka's confirmed compatibility summon. If you look at the Servants he and Rika summoned and do a bit of thinking, you might realize something important about their characters that probably won't slap you in the face full on until whatever and whenever I do the Prison Tower event, for however little of that will wind up on-screen.

EDIT: Moving down the rest of the way.