Dustiness Ford Sylphina

Dustiness Ford Sylphina (ダスティネス・フォード・シルフィーナ) is Darkness' cousin.

Appearance
She is described as the spitting image of a younger version of Darkness, even to those who have never seen the younger version of the latter. Many people within Axel confuse them to be mother and daughter as a result.

History
Sylphina was once infected with a disease called choleran. Being the host, she could only be cured with a complicated antidote consisting of onion of a Duxion, the root of a mandragora, tears of a ghost, and the nails of a high-ranking devil. Kazuma and Darkness set off to obtain the last ingredient since Vanir could not supply them due to his physical body residing in Hell.