The family pet of the Niwa family and Dark's familiar spirit, With responds to Dark's call no matter where he is and transforms into a black, winged creature that becomes Dark's wings by clinging to his back. He 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" (meaning: I really like you). Wiz dislikes learning new words as well.
With resembles a hybrid of a dog and a bunny (the closest animal Daisuke could compare it to was a lop-eared rabbit), and his age is unknown. In this form, With typically says "Kyuu." He hates water, is afraid of scary movies, and dislikes 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.
