Yatonokami twins with an inseparable bond; Also known as the hip-hop duo Cozmez. They only trust each other. Both live in the slums and are poor and broke. They rap in underground venues for a living.

Kanata is the older brother and a rude tsundere; He is cold and angry to everyone except Nayuta; has a blunt tone; the more aggressive twin.
Nayuta is the younger brother and an apathetic kuudere; He is calm, wary, and impassive except towards Kanata; has a deadpan tone; the more rational twin.