A cold beauty with cat-like features. How she addresses others: Amamiya Minato: "Minato" Azui Miki: "Miki" Hino Yota: "Yota-kun" Speech style: ...What? / It's fine, I'm okay.

A warm beauty with puppy-like(?) features. How she addresses others: Hikawa Koyuki: "Koyun" Amamiya Minato: "Minato" Hino Yota: "Yota" Speech style: What's this lol / What's wrong~

A cold handsome guy with cat-like features. How he addresses others: Hikawa Koyuki: "Koyun-chan" Azui Miki: "Miki" Hino Yota: "Yota" Speech style: What is it, Koyuki? lol / Are you okay? Did something happen?

A warm handsome guy with puppy-like(?) features. How he addresses others: Hikawa Koyuki: "Koyun" Amamiya Minato: "Minato" Azui Miki: "Miki" Speech style: Are you okay? You don't have to push yourself.