Dounyatsu
どーにゃつ
Chewy buddies in a strange world! Summer, 20XX. Donyatsu, a cat-like chocolate-covered donut, and his buddies begin their chillaxed lives in an abandoned world. Where have the humans gone? What happened to this world? It's the beginning of a laid-back sci-fi adventure full of mystery and wonder.
(Source: Crunchyroll)