With

ウィズ

With is the family pet of the Niwa family and Dark's familiar spirit. He responds to Dark's call regardless of his location, transforming into a black, winged creature that clings to Dark's back to serve as his wings. With can also perform other transformations, such as turning into Dark or Daisuke, but he is not very adept at verbal communication. For instance, With's attempt to say "Daisuke" comes out as "daisuki" (lit: I really like (you)). Wiz does not like learning new words either.
With resembles a hybrid of a dog and a bunny; the closest animal Daisuke could compare him to was a lop-eared rabbit. It is unknown how old With is. In this form, With normally says "Kyuu." He hates water, is afraid of scary movies, and hates Krad. In the English manga translation, With is known as "Wiz" or "Wizzy."
With is the Japanese version, while Wiz is the English manga version.