Uchi no Neko ga Mononoke ni Narimashite

Death has always existed closer to me than it has for others. Everything important to me has disappeared and slipped through my hands. Yori is a young lady in her 20s who's trying to get through life after the death of her cat, Yuki. One day, a beautiful white-haired youth appears before her claiming to be Yuki?! Is this man who he says he is? Or is there something else Yori is missing?