[It's exactly what he had feared, the beginnings of a mark that showed which people were to be taken to the laboratories of Nizhnii. Ajax looks it over, clearly recognizing the mark, though it's intriguing to him that it looks like the tail of a fish, or maybe even a whale. Without the rest of it materializing yet, he can't be sure.]

Yeah, [he admits,] it's on my chest as well. It felt like I'd been branded by something, or like that part of me had caught on fire and completely seared my skin. Here.

[He takes the jacket he had off, holding it in the crook of his arm as he lifts up his t-shirt to reveal the tail of what is indisputably...a goldfish tail.]

I wasn't exactly sure what kind of fish it belonged to, until you showed me that picture of Hanabi...