[Katsuki's had a lot of "what the hell" moments in his battles alongside people, though his yelling is likely a far less polite variation than Yato's rendition. Scolds them too for needing his help or question in the first place. While helping.]

You wanna do it, go for it. [And tilts his head towards the game area. It's not hard. Someone's blindfolded, someone's the target, and the blind tries pinning the tail on the target. Denji saw it at some point growing up and wanted to try it. Like so many other "normal" things the guy never got a chance to try while growing up. Katsuki wants to see him experience... fuck, everything positive he can, even if there's far too much to do for one lifetime.

Oh him? Hell no! He's not volunteering!]

What'd you eat before the shinki then? [Or is that before Yato's time and memory? He frowns in concentration and thought, trying to imagine what "trends" in a god's realm would look like.] Tch, you guys sound like stronger, longer-lived humans.

[That's not a compliment.]