Chishiya's got this perpetual sneer going on—it's basically his default expression, even when he's actually furious. Only when he's genuinely emotional or feeling regretful does his facade really crack. He's calm, sharp, and genuinely manipulative, which should make him perfect for Hearts games since those are all about outsmarting other players. And honestly, he's pretty good at it. But Chishiya doesn't care about reading people or understanding how their minds work, so he gravitates toward Diamonds instead—those are more his speed, dealing with puzzles and logic rather than human psychology.
At the start, Chishiya's convinced that people are fundamentally selfish and don't give a damn about anything but themselves. But watching Arisu and Usagi actually put others first starts to chip away at that worldview. Their selflessness gradually changes how he sees humanity, even if he doesn't exactly broadcast it.
Content compiled by AnimeList.moe from publicly available sources.
