There's something here that acts like a translator, no matter what language you use, everyone will understand it. And that includes animals, even if they don't say much sometimes.

[He smirks again looking at his wolf, who in exchange turns and stares at him as if knowing what Ikki is implying.]

If you pay attention you can notice when someone switches languages and even recognize it if you know it. But normally the translation takes over. Or did you think that everyone here talked Russian?