Momou has two forms: a human form and a dog form. When in dog form, he changes into a small white dog similar to a chihuahua. In his human form, he has dark brown hair and wears a white tanktop and black jeans with a drawn belt. In both his human and dog forms, he wears a red bandana as a neckerchief and has heterochromatic, or differently colored, eyes; his right eye is blue and left eye is green.