Donyatsu is a special anime that premiered in summer 2013.

About the production: the story comes from a manga, there are 12 episodes of about 2 minutes and its current status is "finished".

On AniList, Donyatsu has an average score of 52%, an average score, and appears on 1,648 users' lists.

The franchise continues in or follows from: Donyatsu Specials.

The "loosely science-fiction adventure" is set in the summer sometime in the 21st century. Tokyo's Shinjuku ward has become a wasteland, void of all humans due to an unexplained catastrophe. What remains are these strange creatures such as "Donyatsu," the half-cat, half-doughnut hybrid, and "Begaru," a feline bagel composite. (Source: Anime News Network)

Official synopsis from AniList.