d.grayi is the work of James Nguyen, known also as Miju, a perfumer who came to scent as an adversary rather than a calling. A career spent around hair color and its chemicals left James allergic. Fragrance meant headaches and a throat swelling shut, and anything scented was avoided outright. Cosmetic chemistry, taken up as a hobby, brought the first turn: cosmetic raw materials that smelled unpleasant, and natural ingredients found to soften them.

Then came a dream, in which someone deeply important who had passed away returned and described a fragrance. It was not a scent so much as a complete story, vivid and pictured, and James woke and wrote down every detail. The quest to recreate it became the studio. Isolated aroma molecules, tried later, provoked nothing; the allergy had been to composition, not to any one material. James now builds olfactive stories unrestricted.