Shiro in the Crayon Shin-chan anime is a fictional dog character with no clear breed affiliation. The appearance of Xiaobai is characterized by white hair, round body and big eyes. It is usually depicted as cute, lively and naughty.
Although Haku has no clear breed background in the anime, his appearance is similar to some small dog breeds, such as poodles, bichon frizes, or West Highland white terriers. However, this is only based on a similarity in appearance rather than a definite breed.
It should be noted that Crayon Shin-chan is a fictional anime and the characters do not represent real dog breeds in the real world.
