A dog named Dui is melting hearts all over the world, and once you see him, you’ll understand why.

Dui resides in Vietnam with his loving humans, Hai Anh and Tuan.

Dui’s photos went viral after they were posted on Reddit with the caption: “Meet the derpiest fuzzball to ever walk the earth.”

After realizing how popular Dui was, his humans decided to make him a Facebook page, which already has more than 229,000 fans.

While some people say he looks like a cross between a dog and a cat or a dog and a seal, others guessed he was Corgi mixed with Hmong, a Vietnamese breed.

But the truth is, Dui is actually a mix of native dog breed and a short-legged dog called Dingo. His owners believe he may also have a gene mutation, and say they got him in a mountain province in Vietnam.

But despite his breed, he is very happy and healthy and loves to play and run around just like any other dog.

He also has the goofiest and derpiest facial expressions we’ve ever seen and we just can’t get enough of him!

To follow Dui’s derpy adventures, click here for his Facebook page.