Magatama Idol Kaguya explains:Edit
"This is a Black Bear Magatama. Even though it's a Magatama is soft and fluffy like fur! When it's winter I think a strong winter coat will start to grow over it, so we should guard it closely during that time. Recently I've been seeing some Brown Bears enjoying themselves in sunny places, and because we have the same holidays I could join them! Come to think of it, Kintoki-san said she wants to eat Bear-Nabe so maybe she'll make it for us too?!"